Title:

\nSoft gravitational radiation from high energy collisions: a progress rep
ort

Abstract:

\nI will review recent developments on soft gra
vitational radiation from ultra-relativistic collisions. Calculations base
d on recent developments in the eikonal approach and in soft-graviton theo
rems will be compared. We find excellent agreement (in their common region
of applicability) and are led to predict an unexpected bump in the spectr
um of the gravitational energy flux at wavelengths comparable to the impac
t parameter of the collision.

TBA

\n END:VEVENT BEGIN:VEVENT UID:1q1eb9cb7bqvkb53qcdkc7u85c@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210323 DTEND;VALUE=DATE:20210324 SEQUENCE:0 SUMMARY:No seminar – elections URL:https://phsites.technion.ac.il/strings/event/no-seminar-elections/ END:VEVENT BEGIN:VEVENT UID:6oimsaf4tjdr7eh28955jeadg6@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210330 DTEND;VALUE=DATE:20210331 SEQUENCE:0 SUMMARY:No seminar – Passover URL:https://phsites.technion.ac.il/strings/event/no-seminar-passover/ END:VEVENT BEGIN:VEVENT UID:7g4bs7qbtmufuafu4usbvaf55m@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210413 DTEND;VALUE=DATE:20210414 SEQUENCE:0 SUMMARY:No seminar – Erev Yom Hazikaron URL:https://phsites.technion.ac.il/strings/event/no-seminar-erev-yom-hazika ron/ END:VEVENT BEGIN:VEVENT UID:72iv4eimbg25u9bschq939higm@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210622 DTEND;VALUE=DATE:20210623 SEQUENCE:0 SUMMARY:No seminar – Strings 2021 URL:https://phsites.technion.ac.il/strings/event/no-seminar-strings-2021-2/ END:VEVENT BEGIN:VEVENT UID:3tken4d7gcn8ukial7qt0t2lvd@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;VALUE=DATE:20210629 DTEND;VALUE=DATE:20210630 SEQUENCE:0 SUMMARY:No seminar – Strings 2021 URL:https://phsites.technion.ac.il/strings/event/no-seminar-strings-2021/ END:VEVENT BEGIN:VEVENT UID:1nh7ufqe7vqi4om39353tg2im0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Towards a full solution of large N double-scaled SYK\nWe show t hat exact correlation functions (at all energy scales) can be obtained in double-scaled SYK\, which is the usual SYK model where the number of fermi ons in the interaction scales as sqrt{N}. This includes the four-point fun ction\, from which corrections to the maximal Lyapunov exponent are calcul ated. These results are related in the appropriate limit to recent results on SYK and the Schwarzian theory. We find indications that the model can be completely solved using symmetry considerations. DTSTART;TZID=Asia/Jerusalem:20181218T103000 DTEND;TZID=Asia/Jerusalem:20181218T113000 SEQUENCE:0 SUMMARY:Vladimir Narovlansky (WIS) URL:https://phsites.technion.ac.il/strings/event/vladimir-narovlansky-wis-2 / X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTowards a ful l solution of large N double-scaled SYK

\nWe show that exact correla tion functions (at all energy scales) can be obtained in double-scaled SYK \, which is the usual SYK model where the number of fermions in the intera ction scales as sqrt{N}. This includes the four-point function\, from whic h corrections to the maximal Lyapunov exponent are calculated. These resul ts are related in the appropriate limit to recent results on SYK and the S chwarzian theory. We find indications that the model can be completely sol ved using symmetry considerations.

\n END:VEVENT BEGIN:VEVENT UID:10ih6u54f5p7q20411ff1dlf9q@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: On the phase diagram of SU(N1)XSU(N2) gauge theory with bifundamental Fermion.\nAbstract: We study the phase diagram of SU(N1)XSU( N2) gauge theory with massive bifundamental Fermion. Assuming that the the ory is confining and gapped in the IR\, some constraints that come from an omalies can be put on the phase diagram as a function of the two theta- an gles. We combine these constraints with computations that are valid in dif ferent limits of the parameter space to construct schematically the entire phase diagram. DTSTART;TZID=Asia/Jerusalem:20181218T120000 DTEND;TZID=Asia/Jerusalem:20181218T130000 SEQUENCE:0 SUMMARY:Avner Karasik (WIS) URL:https://phsites.technion.ac.il/strings/event/avner-karasik-wis/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: On the phase diagram of SU(N1)XSU(N2) gauge theory with bifundamental Fermion.\n

Abstract: We study the phase diagram of SU(N1)XSU(N2) gauge theory with massive bifundamental Fermion. Assuming that the theory is confining and gapped in the IR\, some constraints that come from anomalies can be pu t on the phase diagram as a function of the two theta- angles. We combine these constraints with computations that are valid in different limits of the parameter space to construct schematically the entire phase diagram. < /p>\n END:VEVENT BEGIN:VEVENT UID:7km55isgts7gmsl02eqh6sb3nn@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:tropical Geometry\, Five Brane Webs\, and Higgs branches in fiv e dimensions\nThis talks reviews the recent exciting results on Higgs bran ches in\nfive dimensions – a long standing problem of at least 20 years.\n After a long period of neglect\, the structure which arises from Higgs\nbr anches turns out to be surprising\, rich\, and full of new physics\nphenom ena.\nWe study a three parameter family of N=1 supersymmetric SQCD theorie s\nin five dimensions\, given by the number of colors Nc\, number of\nflav ors Nf\, and Chern-Simons level k. The theory has several dimension\n1 sca les\, given by masses and inverse gauge coupling. When all scales\nare set to zero\, at a UV fixed point\, the SCFT which arises at the\norigin of t he Coulomb branch has a particular structure of chiral\noperators which fo rm a ring on the Higgs branch. The Higgs branch at\nfinite coupling gets l arger\, and an effective description of the Higgs\nbranch at infinite coup ling in best described by quivers using dressed\nmonopole operators.\nOf c ourse five brane webs play a central role and lead to a beautiful\npicture which derives and tests these new results! DTSTART;TZID=Asia/Jerusalem:20181225T103000 DTEND;TZID=Asia/Jerusalem:20181225T113000 SEQUENCE:0 SUMMARY:Ami Hanany URL:https://phsites.technion.ac.il/strings/event/ami-hanany/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

tropical Geom etry\, Five Brane Webs\, and Higgs branches in five dimensions

\nThi
s talks reviews the recent exciting results on Higgs branches in

\nfi
ve dimensions – a long standing problem of at least 20 years.

\nAfter
a long period of neglect\, the structure which arises from Higgs

\nb
ranches turns out to be surprising\, rich\, and full of new physics

\nphenomena.

\nWe study a three parameter family of N=1 supersymmetri
c SQCD theories

\nin five dimensions\, given by the number of colors
Nc\, number of

\nflavors Nf\, and Chern-Simons level k. The theory ha
s several dimension

\n1 scales\, given by masses and inverse gauge co
upling. When all scales

\nare set to zero\, at a UV fixed point\, the
SCFT which arises at the

\norigin of the Coulomb branch has a partic
ular structure of chiral

\noperators which form a ring on the Higgs b
ranch. The Higgs branch at

\nfinite coupling gets larger\, and an eff
ective description of the Higgs

\nbranch at infinite coupling in best
described by quivers using dressed

\nmonopole operators.

\nOf c
ourse five brane webs play a central role and lead to a beautiful

\np
icture which derives and tests these new results!

“Walking\, we akly first-order phase transitions\, and complex CFTs”

\nAbstract:**\nAppetizer: Most people have heard that the 2d Potts model with Q=5 s
tates has a first order phase transition\, but not everyone knows that the
correlation length at this phase transition is 2500 lattice spacings.\nWe will review “walking RG” behavior in gauge theories and connect it
to Type II weak first-order phase transitions in statistical physics. Desp
ite appearing in very different systems (QCD below the conformal window\,
the Potts model\, deconfined criticality) these two phenomena both imply a
pproximate scale invariance in a range of energies and have the same RG in
terpretation: a flow passing between pairs of fixed point at complex coupl
ing\, dubbed “complex CFTs”. Observables of the real walking theory are ap
proximately computable by perturbing the complex CFTs. The general mechani
sm will be illustrated by a specific and computable example: the two-dimen
sional Q-state Potts model with Q > 4. Based on http://arxiv.org/abs/1807.
11512 and http://arxiv.org/abs/1808.04380**

Title: Solv ing topological sectors of 3d SCFTs and holography

\nAbstract: 3d s uperconformal field theories with {cal N} = 4 SUSY have two inequivalent 1 d topological sectors\, one corresponding to the Higgs branch and the othe r to the Coulomb branch. I will explain how to compute all correlation fu nctions in these sectors for 3d gauge theories with matter hypermultiplets . In some cases where the 1d sectors come from 3d theories with holograph ic duals\, I will provide constructions of 2d bulk duals of these 1d secto rs.

\n END:VEVENT BEGIN:VEVENT UID:3kf47drj9hcf7ln6orkpjst59g@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Knots from M-theory\nAbstract: We identify a sector of 1 /8 BPS surface operators in the 6d (2\,0) theory on S^1*S^5. Upon KK reduc tion on the S^1 factor\, they correspond to 1/8 BPS Wilson loops restricte d to a great S^3 in the 5d N=2 super-Yang-Mills theory on S^5. We provide strong evidence for a conjecture that such Wilson loop observables are des cribed by an effective 3d Chern-Simons theory on this S^3 with the level a nalytically continued to an imaginary value. Thus the corresponding surfac e operators in the (2\,0) theory compute topological knot invariants on S^ 3. In the large N limit\, from AdS/CFT\, these surface operators correspon d to certain calibrated M2 branes in AdS_7*S^4. We compute their renormali zed action and find perfect agreement with the effective CS description. L astly we’ll discuss steps towards proving this conjecture from localizatio n. DTSTART;TZID=Asia/Jerusalem:20190115T120000 DTEND;TZID=Asia/Jerusalem:20190115T130000 SEQUENCE:0 SUMMARY:Yifan Wang (Princeton) URL:https://phsites.technion.ac.il/strings/event/yifan-wang-princeton/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Knots from M-theory

\nAbstract: We identify a sector of 1/8 BPS surface op erators in the 6d (2\,0) theory on S^1*S^5. Upon KK reduction on the S^1 f actor\, they correspond to 1/8 BPS Wilson loops restricted to a great S^3 in the 5d N=2 super-Yang-Mills theory on S^5. We provide strong evidence f or a conjecture that such Wilson loop observables are described by an effe ctive 3d Chern-Simons theory on this S^3 with the level analytically conti nued to an imaginary value. Thus the corresponding surface operators in th e (2\,0) theory compute topological knot invariants on S^3. In the large N limit\, from AdS/CFT\, these surface operators correspond to certain cali brated M2 branes in AdS_7*S^4. We compute their renormalized action and fi nd perfect agreement with the effective CS description. Lastly we’ll discu ss steps towards proving this conjecture from localization.

\n< /HTML> END:VEVENT BEGIN:VEVENT UID:atf8mhjku6tlpn7lhnqftn5tfk@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20190121T113000 DTEND;TZID=Asia/Jerusalem:20190121T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Iftah Galon\, Title: New Physics at F ASER – ForwArd Search ExpeRiment at the LHC URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-iftah-galon-title-new-physics-at-faser-forward-search-experiment-at-the- lhc-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:istuk727edv37evk772cmjs6do@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20190128T113000 DTEND;TZID=Asia/Jerusalem:20190128T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Adi Armoni\, Title: Phases of QCD3 an d Duality URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-adi-armoni-title-phases-of-qcd3-and-duality-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:3jv8etoiokm56kppfpb711pms8@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:From Scattering Amplitudes to Classical Observables\nI present a formalism for computing classically measurable quantities directly from on-shell quantum scattering amplitudes. I will discuss the ingredients nee ded for obtaining the classical result\, and show how to set up the calcul ation to derive the result efficiently. The formalism is not specific to a given theory\, and is ultimately destined to be used for general relativi ty. In this talk\, I will give two examples from spinless scattering in e lectrodynamics: the momentum transfer to next-to-leading order\, and the m omentum radiated to leading order. DTSTART;TZID=Asia/Jerusalem:20190205T103000 DTEND;TZID=Asia/Jerusalem:20190205T113000 SEQUENCE:0 SUMMARY:David Kosower (IPhT) URL:https://phsites.technion.ac.il/strings/event/david-kosower-ipht/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nFrom Scatteri ng Amplitudes to Classical Observables

\nI present a formalism for c omputing classically measurable quantities directly from on-shell quantum scattering amplitudes. I will discuss the ingredients needed for obtaining the classical result\, and show how to set up the calculation to derive t he result efficiently. The formalism is not specific to a given theory\, a nd is ultimately destined to be used for general relativity. In this talk \, I will give two examples from spinless scattering in electrodynamics: t he momentum transfer to next-to-leading order\, and the momentum radiated to leading order.

\n END:VEVENT BEGIN:VEVENT UID:1r9r2b9j1bd8n2mnbl6ntj0m05@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: How to Embrace a Naked Singularity\nAbstract: I will use holography to study the vacuum structure of a\nfour-dimensional N=1 super symmetric QFT\, known as N=1*\, obtained as a\nsuperpotential mass deforma tion of N=4 SYM. A central role in this\ndiscussion is played by a new ana lytic background of type IIB\nsupergravity obtained by uplifting the well- known five-dimensional GPPZ\nsolution. The ten-dimensional solution exhibi ts a naked singularity\nwhich reflects the IR physics in the gauge theory. I will discuss in\ndetail how to probe this naked singularity and the imp lications for the\nphysics of the dual gauge theory. DTSTART;TZID=Asia/Jerusalem:20190205T120000 DTEND;TZID=Asia/Jerusalem:20190205T130000 SEQUENCE:0 SUMMARY:Nikolay Bobev (KU Leuven) URL:https://phsites.technion.ac.il/strings/event/nikolay-bobev-ku-leuven/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: How to Embrace a Naked Singularity

\nAbstract: I will use holography to st
udy the vacuum structure of a

\nfour-dimensional N=1 supersymmetric Q
FT\, known as N=1*\, obtained as a

\nsuperpotential mass deformation
of N=4 SYM. A central role in this

\ndiscussion is played by a new an
alytic background of type IIB

\nsupergravity obtained by uplifting th
e well-known five-dimensional GPPZ

\nsolution. The ten-dimensional so
lution exhibits a naked singularity

\nwhich reflects the IR physics i
n the gauge theory. I will discuss in

\ndetail how to probe this nake
d singularity and the implications for the

\nphysics of the dual gaug
e theory.

“Spin 2 opera tors in holographic SCFTS in four and five dimensions”

\n END:VEVENT BEGIN:VEVENT UID:1rhjlltft47c3huh7k3ou9nbg4@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:New 3d N=2 SCFT’s with N^3/2 scaling\nWe construct several nove l examples of 3d N=2 models whose free energy scales as N^3/2 at large N. This is the first step towards the identification of field theories with a n M-theory dual. Furthermore\, we match the volumes extracted from the fre e energy with the ones computed from the Hilbert series. We perform a simi lar analysis for the 4d parents of the 3d models\, matching the volume ext racted from the a conformal anomaly to that obtained from the Hilbert seri es. For some of the 4d models\, we show the existence of a Sasaki-Einstein metric on the internal space of the candidate type IIB gravity dual. DTSTART;TZID=Asia/Jerusalem:20190319T120000 DTEND;TZID=Asia/Jerusalem:20190319T130000 SEQUENCE:0 SUMMARY:Marco Fazzi (Technion) URL:https://phsites.technion.ac.il/strings/event/marco-fazzi-technion/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nNew 3d N=2 SC FT’s with N^3/2 scaling

\nWe construct several novel examples of 3d N=2 models whose free energy scales as N^3/2 at large N. This is the first step towards the identification of field theories with an M-theory dual. Furthermore\, we match the volumes extracted from the free energy with the ones computed from the Hilbert series. We perform a similar analysis for the 4d parents of the 3d models\, matching the volume extracted from the a conformal anomaly to that obtained from the Hilbert series. For some of t he 4d models\, we show the existence of a Sasaki-Einstein metric on the in ternal space of the candidate type IIB gravity dual.

\n END:VEVENT BEGIN:VEVENT UID:4vk299ji8h8oltj4ogl4d0kpt0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Hydrodynamics of Entanglement\nAbstract: The time evolution of entanglement entropy in highly exited states of chaotic quantum systems pr ovides insight both into the process of thermalization\, and through the g auge/gravity duality into black holes in quantum gravity. Most conventiona l methods are not applicable to this problem. In this talk\, I present an effective theory for entanglement dynamics akin to hydrodynamics. I derive this theory in the special case of chaotic gauge theories dual to gravity in AdS spacetime\, and present strong evidence that is valid for any chao tic system. I discuss the interplay between the effective theory and chaot ic operator growth. I conclude with some outstanding problems this new the ory may help to solve. DTSTART;TZID=Asia/Jerusalem:20190402T103000 DTEND;TZID=Asia/Jerusalem:20190402T113000 SEQUENCE:0 SUMMARY:Mark Mezei (Stony Brook) URL:https://phsites.technion.ac.il/strings/event/mark-mezei-stony-brook/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nHydrodynamics of Entanglement

\nAbstract: The time evolution of entanglement entr opy in highly exited states of chaotic quantum systems provides insight bo th into the process of thermalization\, and through the gauge/gravity dual ity into black holes in quantum gravity. Most conventional methods are not applicable to this problem. In this talk\, I present an effective theory for entanglement dynamics akin to hydrodynamics. I derive this theory in t he special case of chaotic gauge theories dual to gravity in AdS spacetime \, and present strong evidence that is valid for any chaotic system. I dis cuss the interplay between the effective theory and chaotic operator growt h. I conclude with some outstanding problems this new theory may help to s olve.

\n END:VEVENT BEGIN:VEVENT UID:4l9sobdq37v5dn21qdov0m2t64@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“How to glue a spacetime from entanglement wedges”\nIf a hologr aphic bulk spacetime is built out of quantum entanglement in the boundary theory\, how do we understand the bulk connection? To inspect the entangle ment structure of a boundary state\, we dissect it into components and loo k at their quantum correlations. Each boundary component reconstructs a re gion of the bulk called entanglement wedge. The entanglement wedge (and it s corresponding component subregion of the boundary) has an internal symme try called modular flow\, which has two properties that will be useful for our purposes. First\, modular flow is a gauge symmetry because it relates to one another different ways of presenting the same physical system–the entanglement wedge. Second\, modular flow is a generalization of choosing the phase of a pure quantum state in a Hilbert space. When we glue togethe r two overlapping entanglement wedges to build a larger spacetime\, we mus t specify how to map the observables in the first wedge (presented in some modular frame–in some gauge) to observables in the second wedge (also pre sented in some gauge). Thus\, gluing together two component subregions of the boundary–as well as two entanglement wedges–requires a connection that relates their respective modular frames. This connection is analogous to specifying the phase of a quantum state that evolves under a time-dependen t Hamiltonian\, that is the Berry phase. I argue that the modular Berry co nnection is the boundary origin of the usual\, geometric connection in the bulk. I will sketch some subtleties in the formal construction of the mod ular Berry connection\, give examples and list key questions for the futur e. DTSTART;TZID=Asia/Jerusalem:20190402T120000 DTEND;TZID=Asia/Jerusalem:20190402T130000 SEQUENCE:0 SUMMARY:Bartek Czech (Tsinghua) URL:https://phsites.technion.ac.il/strings/event/bartek-czech-tsinghua/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n“How to glue a spacetime from entanglement wedges”

\nIf a holographic bulk spacet ime is built out of quantum entanglement in the boundary theory\, how do w e understand the bulk connection? To inspect the entanglement structure of a boundary state\, we dissect it into components and look at their quantu m correlations. Each boundary component reconstructs a region of the bulk called entanglement wedge. The entanglement wedge (and its corresponding c omponent subregion of the boundary) has an internal symmetry called modula r flow\, which has two properties that will be useful for our purposes. Fi rst\, modular flow is a gauge symmetry because it relates to one another d ifferent ways of presenting the same physical system–the entanglement wedg e. Second\, modular flow is a generalization of choosing the phase of a pu re quantum state in a Hilbert space. When we glue together two overlapping entanglement wedges to build a larger spacetime\, we must specify how to map the observables in the first wedge (presented in some modular frame–in some gauge) to observables in the second wedge (also presented in some ga uge). Thus\, gluing together two component subregions of the boundary–as w ell as two entanglement wedges–requires a connection that relates their re spective modular frames. This connection is analogous to specifying the ph ase of a quantum state that evolves under a time-dependent Hamiltonian\, t hat is the Berry phase. I argue that the modular Berry connection is the b oundary origin of the usual\, geometric connection in the bulk. I will ske tch some subtleties in the formal construction of the modular Berry connec tion\, give examples and list key questions for the future.

\n< /HTML> END:VEVENT BEGIN:VEVENT UID:06rtvfg1gouojumh1n7uir3l88@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:The title is “Two dimensional Nearly de Sitter gravity” and the abstract is \nIn recent years\, there has been a lot of progress in under standing holography between two dimensional gravity in nearly AdS and quan tum mechanical systems\, such as the Sachdev-Ye-Kitaev model. In this talk I will extend this analysis to two dimensional de Sitter and its relation to higher dimensional gravity. DTSTART;TZID=Asia/Jerusalem:20190430T103000 DTEND;TZID=Asia/Jerusalem:20190430T113000 SEQUENCE:0 SUMMARY:Joaquin Turiaci (Santa Barbara) URL:https://phsites.technion.ac.il/strings/event/joaquin-turiaci-santa-barb ara/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nThe title is “Two dimensional Nearly de Sitter gravity” and the abstract is

\nIn recent years\, there has been a lot of progress in understanding holograp hy between two dimensional gravity in nearly AdS and quantum mechanical sy stems\, such as the Sachdev-Ye-Kitaev model. In this talk I will extend th is analysis to two dimensional de Sitter and its relation to higher dimens ional gravity.

\n END:VEVENT BEGIN:VEVENT UID:43k94p9f8p8pas757ner6n3ng4@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Dualities in 3d N=1 Chern-Simons-Matter Theories DTSTART;TZID=Asia/Jerusalem:20190430T120000 DTEND;TZID=Asia/Jerusalem:20190430T130000 SEQUENCE:0 SUMMARY:Adar Sharon (Weizmann) URL:https://phsites.technion.ac.il/strings/event/adar-sharon-weizmann/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nDualities in 3d N=1 Chern-Simons-Matter Theories

\n END:VEVENT BEGIN:VEVENT UID:68sm2cpocgrjgb9l6hh3ib9k6tgmab9ocko3ib9nc4s6achmcgpmadhmco@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20190508T080000 DTEND;TZID=Asia/Jerusalem:20190508T090000 SEQUENCE:0 SUMMARY:יום שלישי מוזיקה URL:https://phsites.technion.ac.il/strings/event/%d7%99%d7%95%d7%9d-%d7%a9% d7%9c%d7%99%d7%a9%d7%99-%d7%9e%d7%95%d7%96%d7%99%d7%a7%d7%94/ END:VEVENT BEGIN:VEVENT UID:3jiht78mdd86hfjdhbergmsncl@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:TBA DTSTART;TZID=Asia/Jerusalem:20190514T103000 DTEND;TZID=Asia/Jerusalem:20190514T113000 SEQUENCE:0 SUMMARY:Moshe Rozali (UBC) URL:https://phsites.technion.ac.il/strings/event/moshe-rozali-ubc/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTBA

\n END:VEVENT BEGIN:VEVENT UID:7drltp822tv4vjin06ht226609@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Supersymmetric Lifshitz Field Theories\nAbstract: Lifshi tz scaling is an anisotropic scaling where time and space scale differentl y. Quantum field theories that exhibit Lifshitz scale symmetry provide a f ramework for studying low energy systems with an emergent dynamic scaling such as quantum critical points. Introducing supersymmetry to the Lifshitz algebra leads to a rich structure that is less constrained compared to th at of relativistic supersymmetry. We construct supersymmetric Lifshitz qua ntum field theories and study their renormalization properties and RG flow s. We show that models of Lifshitz supersymmetry that possess a holomorphi c structure realize a line of quantum exact Lifshitz fixed points for vari ous choices of spacetime dimensions and marginal supersymmetric interactio ns. The presented results are based on two papers. DTSTART;TZID=Asia/Jerusalem:20190514T120000 DTEND;TZID=Asia/Jerusalem:20190514T130000 SEQUENCE:0 SUMMARY:Avia Raviv-Moshe (TAU) URL:https://phsites.technion.ac.il/strings/event/avia-raviv-moshe-tau/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Supers ymmetric Lifshitz Field Theories

\nAbstract: Lifshitz scaling is an anisotropic scaling where time and space scale differently. Quantum field theories that exhibit Lifshitz scale symmetry provide a framework for stud ying low energy systems with an emergent dynamic scaling such as quantum c ritical points. Introducing supersymmetry to the Lifshitz algebra leads to a rich structure that is less constrained compared to that of relativisti c supersymmetry. We construct supersymmetric Lifshitz quantum field theori es and study their renormalization properties and RG flows. We show that m odels of Lifshitz supersymmetry that possess a holomorphic structure reali ze a line of quantum exact Lifshitz fixed points for various choices of sp acetime dimensions and marginal supersymmetric interactions. The presented results are based on two papers.

\n END:VEVENT BEGIN:VEVENT UID:5n05tksrmqnv7k2ac92uu02q41@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“From 3d dualities to 2d free field correlators and back”\nDual ities give us new perspectives on the dynamics of supersymmetric gauge the ories and are valuable tools to explore their strongly coupled phases. We know different types of dualities such as holographic and IR\, and various examples of correspondences relating supersymmetric gauge theories to low er-dimensional systems such as 2d conformal field theories or spin-systems .\nI will focus on 3d supersymmetric gauge theories and discuss a new curi ous relation between 3d IR dualities and duality identities for free field correlators in 2d CFTs.\n Based on \n1903.10817 and 1905.05807 DTSTART;TZID=Asia/Jerusalem:20190521T103000 DTEND;TZID=Asia/Jerusalem:20190521T113000 SEQUENCE:0 SUMMARY:Sara Pasquetti (Milan) URL:https://phsites.technion.ac.il/strings/event/sara-pasquetti-milan/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n“From 3d dual ities to 2d free field correlators and back”

\nDualities give us new perspectives on the dynamics of supersymmetric gauge theories and are val uable tools to explore their strongly coupled phases. We know different ty pes of dualities such as holographic and IR\, and various examples of corr espondences relating supersymmetric gauge theories to lower-dimensional sy stems such as 2d conformal field theories or spin-systems.

\nI will focus on 3d supersymmetric gauge theories and discuss a new curious relati on between 3d IR dualities and duality identities for free field correlato rs in 2d CFTs.

\nBased on

\n1903.10817 and 1905.05807

\n END:VEVENT BEGIN:VEVENT UID:2ncljed7rimsnafd5q2n2c7sth@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“Correlation functions in some solvable models”\nabstract: Cert ain quantum field theories – often large N theories in lower dimension – a re sufficiently simple that one is able to compute correlation functions a t strong coupling. We will discuss some new and old examples of such theor ies\, in particular\, the SYK model\, the ’t Hooft model\, the fishnet the ory\, and matrix quantum mechanics. DTSTART;TZID=Asia/Jerusalem:20190521T120000 DTEND;TZID=Asia/Jerusalem:20190521T130000 SEQUENCE:0 SUMMARY:Vladimir Rosenhaus (IAS) URL:https://phsites.technion.ac.il/strings/event/vladimir-rosenhaus-ias/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n“Correlation functions in some solvable models”

\nabstract: Certain quantum field theories – often large N theories in lower dimension – are sufficiently s imple that one is able to compute correlation functions at strong coupling . We will discuss some new and old examples of such theories\, in particul ar\, the SYK model\, the ’t Hooft model\, the fishnet theory\, and matrix quantum mechanics.

\n END:VEVENT BEGIN:VEVENT UID:4mqnm7epd8cd64mcl4utoo8k51@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Anomalies in the Space of Coupling Constants\nAbstract: \nIt is customary to couple a quantum system to external classical fields. One application is to couple the global symmetries of the system (includ ing the Poincare symmetry) to background gauge fields (and a metric for th e Poincare symmetry). Failure of gauge invariance of the partition functi on under gauge transformations of these fields reflects ‘t Hooft anomalies . It is also common to view the ordinary (scalar) coupling constants as b ackground fields\, i.e. to study the theory when they are spacetime depend ent. We will show that the notion of ‘t Hooft anomalies can be extended n aturally to include these scalar background fields. Just as ordinary ‘t H ooft anomalies allow us to deduce dynamical consequences about the phases of the theory and its defects\, the same is true for these generalized ‘t Hooft anomalies. Specifically\, since the coupling constants vary\, we ca n learn that certain phase transitions must be present. We will demonstrat e these anomalies and their applications in simple pedagogical examples in one dimension (quantum mechanics) and in some two\, three\, and four-dime nsional quantum field theories. DTSTART;TZID=Asia/Jerusalem:20190528T103000 DTEND;TZID=Asia/Jerusalem:20190528T113000 SEQUENCE:0 SUMMARY:Nathan Seiberg (IAS) URL:https://phsites.technion.ac.il/strings/event/nathan-seiberg-ias/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Anomal ies in the Space of Coupling Constants

\nAbstract:

\nIt is cust
omary to couple a quantum system to external classical fields. One applic
ation is to couple the global symmetries of the system (including the Poin
care symmetry) to background gauge fields (and a metric for the Poincare s
ymmetry). Failure of gauge invariance of the partition function under gau
ge transformations of these fields reflects ‘t Hooft anomalies. It is als
o common to view the ordinary (scalar) coupling constants as background fi
elds\, i.e. to study the theory when they are spacetime dependent. We wil
l show that the notion of ‘t Hooft anomalies can be extended naturally to
include these scalar background fields. Just as ordinary ‘t Hooft anomali
es allow us to deduce dynamical consequences about the phases of the theor
y and its defects\, the same is true for these generalized ‘t Hooft anomal
ies. Specifically\, since the coupling constants vary\, we can learn that
certain phase transitions must be present. We will demonstrate these anom
alies and their applications in simple pedagogical examples in one dimensi
on (quantum mechanics) and in some two\, three\, and four-dimensional quan
tum field theories.

Subleading M icrostate Counting of AdS_4 Black Hole Entropy

\nI will describe ho w within eleven dimensional supergravity one can compute the logarithmic c orrection to the Bekenstein-Hawking entropy of certain magnetically charge d asymptotically AdS_4 black holes with arbitrary horizon topology. The r esult perfectly agrees with the dual field theory computation of the topol ogically twisted index in ABJM theory and in certain theories obtained fr om M5 wrapping a hyperbolic 3-manifold.

\n END:VEVENT BEGIN:VEVENT UID:0d3grimv9clhcr1veeg0u2scp2@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Sphere partition functions and de Sitter space\nAbstract : We consider the partition function of quantum fields on the Euclidean sp here\, and its relation to quantum fields on de Sitter space. We express t he sphere partition function in terms of group characters of the de Sitter group\, providing a general expression for arbitrary spin and mass. We ap ply our results to a theory with an infinite tower of massless higher spin fields\, which is the linearised spectrum of Vasiliev theory. DTSTART;TZID=Asia/Jerusalem:20190604T103000 DTEND;TZID=Asia/Jerusalem:20190604T113000 SEQUENCE:0 SUMMARY:Dio Anninos (King’s College London) URL:https://phsites.technion.ac.il/strings/event/dio-anninos-kings-college- london/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Sphere partition functions and de Sitter space

\nAbstract: We consider the partition function of quantum fields on the Euclidean sphere\, and its re lation to quantum fields on de Sitter space. We express the sphere partiti on function in terms of group characters of the de Sitter group\, providin g a general expression for arbitrary spin and mass. We apply our results t o a theory with an infinite tower of massless higher spin fields\, which i s the linearised spectrum of Vasiliev theory.

\n END:VEVENT BEGIN:VEVENT UID:661il9skro09b13dbueoi2gj0l@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Neutron star physics from holographic QCD\nGauge/gravity dualit y can be used to study QCD at high densities and low\ntemperatures where m any other theoretical tools do not work. In\nparticular one may constrain the equation of state of QCD matter in\nneutron star cores\, which current ly has large theoretical uncertainties.\nI will review recent progress on this topic. Bottom-up models which are\ncarefully fitted to available data suggest that the equation of state is\nstiff (i.e.\, the speed of sound i s high) in the nuclear matter phase and\nsoft (i.e\, the speed of sound is low) in the quark matter phase. The two\nphases are separated by a strong first order phase transition\, which\nmakes quark matter cores of neutron stars unstable. This picture agrees\nwith current experimental constraint s from LIGO/Virgo and from mass\nmeasurements of neutron star binaries. DTSTART;TZID=Asia/Jerusalem:20190604T120000 DTEND;TZID=Asia/Jerusalem:20190604T130000 SEQUENCE:0 SUMMARY:Matti Jarvinen (Utrecht) URL:https://phsites.technion.ac.il/strings/event/matti-jarvinen/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nNeutron star physics from holographic QCD

\nGauge/gravity duality can be used to
study QCD at high densities and low

\ntemperatures where many other t
heoretical tools do not work. In

\nparticular one may constrain the e
quation of state of QCD matter in

\nneutron star cores\, which curren
tly has large theoretical uncertainties.

\nI will review recent progr
ess on this topic. Bottom-up models which are

\ncarefully fitted to a
vailable data suggest that the equation of state is

\nstiff (i.e.\, t
he speed of sound is high) in the nuclear matter phase and

\nsoft (i.
e\, the speed of sound is low) in the quark matter phase. The two

\np
hases are separated by a strong first order phase transition\, which

\nmakes quark matter cores of neutron stars unstable. This picture agrees<
br />\nwith current experimental constraints from LIGO/Virgo and from mass

\nmeasurements of neutron star binaries.

A

\n END:VEVENT BEGIN:VEVENT UID:61p6aj8gkuq20b0ov3qic0slrp@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title : Out of time ordered effective dynamics of a B rownian particle\nAbstract : In this talk I will present the out of time ordered dynamics of a Brownian particle interacting with a thermal bath. To illustrate the features of this effective dynamics\, I will describe a simple toy model where the bath comprises of two sets of harmonic oscillat ors coupled nonlinearly to the Brownian particle. Beginning with a Schwing er-Keldysh effective action of the particle\, I will demonstrate its duali ty with a stochastic theory governed by a non-linear Langevin equation. Th is Langevin dynamics or the equivalent Schwinger-Keldysh effective theory is\, however\, inadequate for determining the Out-of-Time-Order Correlato rs (OTOCs) of the particle.This limitation can be overcome by extending th e particle’s effective theory to a path integral formalism defined on a co ntour with multiple time-folds. This extension introduces some new effecti ve couplings which are determined by the bath’s OTOCs. The couplings in th is OTO effective theory satisfy some constraints due to microscopic revers ibility and thermality of the bath. I will show that\, from the point of v iew of the Langevin dynamics\, these constraints lead to a generalised flu ctuation-dissipation relation between a non-Gaussianity in the noise distr ibution and a thermal jitter in the particle’s damping coefficient. DTSTART;TZID=Asia/Jerusalem:20191022T103000 DTEND;TZID=Asia/Jerusalem:20191022T113000 SEQUENCE:0 SUMMARY:Soumyadeep Chaudhuri URL:https://phsites.technion.ac.il/strings/event/shlomo-razamat-3/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle : Out of time ordered effective dynamics of a Brownian particle

\nAbstract : In this talk I will present the out of time ordered dynamics of a Brownian particle interacting with a thermal bath. To illustrate the features of this effective dynamics\, I will describe a simple toy model where the bath comprises of two sets of harmonic oscillators coupled nonli nearly to the Brownian particle. Beginning with a Schwinger-Keldysh effect ive action of the particle\, I will demonstrate its duality with a stochas tic theory governed by a non-linear Langevin equation. This Langevin dynam ics or the equivalent Schwinger-Keldysh effective theory is\, however\, i nadequate for determining the Out-of-Time-Order Correlators (OTOCs) of the particle.This limitation can be overcome by extending the particle’s effe ctive theory to a path integral formalism defined on a contour with multip le time-folds. This extension introduces some new effective couplings whic h are determined by the bath’s OTOCs. The couplings in this OTO effective theory satisfy some constraints due to microscopic reversibility and therm ality of the bath. I will show that\, from the point of view of the Langev in dynamics\, these constraints lead to a generalised fluctuation-dissipat ion relation between a non-Gaussianity in the noise distribution and a the rmal jitter in the particle’s damping coefficient.

\n END:VEVENT BEGIN:VEVENT UID:5lohfit82pof26bdm2p7ak5s03@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: “Integrability from Confinement”\nAbstract: \nI will arg ue that high energy dynamics on the worldsheet of confining strings is int egrable and illustrate this point using two examples.\nThe first is a pur e Yang—Mills theory in two spatial dimensions. There this logic allows one to obtain a prediction for quantum numbers\nof all glueballs. I will pre sent results of a dedicated lattice simulation which confirm this predicti on. The second example is an adjoint QCD in one spatial dimension.\nThere this logic leads to a “zigzag model”—a remarkably simple novel integrable relativistic $N$-body system. I will prove the Liouville integrability\no f the zigzag model by presenting an explicit construction of the correspon ding conserved charges.\nThis model describes the $N$-particle subsector o f a $Tbar{T}$-deformed massless fermion and\nsuggests a natural setting fo r constructing off-shell observables in $Tbar{T}$-deformed theories. DTSTART;TZID=Asia/Jerusalem:20191022T120000 DTEND;TZID=Asia/Jerusalem:20191022T130000 SEQUENCE:0 SUMMARY:Sergei Dubovsky URL:https://phsites.technion.ac.il/strings/event/sergei-dubovsky/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: “Integ rability from Confinement”

\nAbstract:

\nI will argue that hi
gh energy dynamics on the worldsheet of confining strings is integrable an
d illustrate this point using two examples.

\nThe first is a pure Ya
ng—Mills theory in two spatial dimensions. There this logic allows one to
obtain a prediction for quantum numbers

\nof all glueballs. I will p
resent results of a dedicated lattice simulation which confirm this predic
tion. The second example is an adjoint QCD in one spatial dimension.

\nThere this logic leads to a “zigzag model”—a remarkably simple novel in
tegrable relativistic $N$-body system. I will prove the Liouville integrab
ility

\nof the zigzag model by presenting an explicit construction of
the corresponding conserved charges.

\nThis model describes the $N$-
particle subsector of a $Tbar{T}$-deformed massless fermion and

\nsug
gests a natural setting for constructing off-shell observables in $Tbar{T
}$-deformed theories.

A

\n END:VEVENT BEGIN:VEVENT UID:c7lr0q5jkpkasmvkpblikl4134@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20191104T113000 DTEND;TZID=Asia/Jerusalem:20191104T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Anton Nedelin\, Title: Black holes\, Bethe Ansatz and toric geometry URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-anton-nedelin-title-black-holes-bethe-ansatz-and-toric-geometry-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:3bcn5en350tbdqdvo164q7f283@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“Holographic order from modular chaos” DTSTART;TZID=Asia/Jerusalem:20191105T103000 DTEND;TZID=Asia/Jerusalem:20191105T113000 SEQUENCE:0 SUMMARY:Lampros Lamprou (MIT) URL:https://phsites.technion.ac.il/strings/event/sergei-razamat/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n“Holographic order from modular chaos”

\n END:VEVENT BEGIN:VEVENT UID:0dnlieuv5nge6mpkppdkibq9e7@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Generalised Riemann Hypothesis\, Random Time Series and Normal Distributions\nAbstract: L functions based on Dirichlet characters are natural generalizations of the Riemann zeta function: they both have s eries representations and satisfy an Euler product representation\, i.e. a n infinite product taken over prime numbers. We address the Generalized R iemann Hypothesis relative to the non-trivial complex zeros of the Dirichl et L functions by studying the possibility to enlarge the original domain of convergence of their Euler product. This leads us to analyse the asympt otic behaviour of particular series on primes: although deterministic\, th ese series have pronounced stochastic features which make them analogous t o random time series. For non-principal characters\, we show that\, in vie w of the Dirichlet theorem on the equidistribution of reduced residue clas ses modulo q and the Lemke Oliver-Soundararajan result on the distribution of pairs of residues on consecutive primes\, these series present a unive rsal diffusive random walk behavior with critical exponent ½. DTSTART;TZID=Asia/Jerusalem:20191105T120000 DTEND;TZID=Asia/Jerusalem:20191105T130000 SEQUENCE:0 SUMMARY:Giuseppe Mussardo (SISSA) URL:https://phsites.technion.ac.il/strings/event/giuseppe-mussardo/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Genera lised Riemann Hypothesis\, Random Time Series and Normal Distributions

\nAbstract: L functions based on Dirichlet characters are natural gener alizations of the Riemann zeta function: they both have series representat ions and satisfy an Euler product representation\, i.e. an infinite produc t taken over prime numbers. We address the Generalized Riemann Hypothesis relative to the non-trivial complex zeros of the Dirichlet L functions by studying the possibility to enlarge the original domain of convergence of their Euler product. This leads us to analyse the asymptotic behaviour of particular series on primes: although deterministic\, these series have p ronounced stochastic features which make them analogous to random time ser ies. For non-principal characters\, we show that\, in view of the Dirichle t theorem on the equidistribution of reduced residue classes modulo q and the Lemke Oliver-Soundararajan result on the distribution of pairs of resi dues on consecutive primes\, these series present a universal diffusive ra ndom walk behavior with critical exponent ½.

\n END:VEVENT BEGIN:VEVENT UID:198ecp78gsslrm9jmi1ttamt2s@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191110T143000 DTEND;TZID=Asia/Jerusalem:20191110T153000 SEQUENCE:0 SUMMARY:Evyatar Sabag URL:https://phsites.technion.ac.il/strings/event/evyatar-sabag/ END:VEVENT BEGIN:VEVENT UID:ludph463kep00dlkcrf9rivpnc@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20191111T113000 DTEND;TZID=Asia/Jerusalem:20191111T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Shira Chapman\, Title: On the Complex ity of Black Holes URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-shira-chapman-title-on-the-complexity-of-black-holes-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:50cs29qr6vkt0gftto13orpqro@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191117T143000 DTEND;TZID=Asia/Jerusalem:20191117T153000 SEQUENCE:0 SUMMARY:Anton Nedelin URL:https://phsites.technion.ac.il/strings/event/anton-nedelin-2/ END:VEVENT BEGIN:VEVENT UID:1o8qrt3ne0e781pgpuv2jjfqbg@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191124T143000 DTEND;TZID=Asia/Jerusalem:20191124T153000 SEQUENCE:0 SUMMARY:Orr Sela URL:https://phsites.technion.ac.il/strings/event/orr-sela/ END:VEVENT BEGIN:VEVENT UID:6krn5vg7gbc9tmbu1rsjob16h4@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20191125T110000 DTEND;TZID=Asia/Jerusalem:20191125T120000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Varun Sethi\, Title: Brane configurat ions and tachyons at finite temperature in dense holographic QCD URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-varun-sethi-title-brane-configurations-and-tachyons-at-finite-temperatur e-in-dense-holographic-qcd-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:3tikhba10rt873k46c9q7aug78@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:title: N=1 conformal dualities\nabstract: We consider on one ha nd the possibility that a supersymmetric N = 1 conformal gauge theory has a strongly coupled locus on the conformal manifold at which a different\, dual\, conformal gauge theory becomes a good weakly coupled description. O n the other hand we discuss the possibility that strongly coupled theories \, e.g. SCFTs in class S\, having exactly marginal N = 1 deformations admi t a weakly coupled gauge theory description on some locus of the conformal manifold. We present a simple algorithm to search for such dualities and discuss several concrete examples. In particular we find conformal duals f or N = 1 SQCD models with G2 gauge group and a model with SU(4) gauge grou p in terms of simple quiver gauge theories. We also find conformal weakly coupled quiver theory duals for a variety of class S theories: T4\, R0\,4\ , R2\,5\, and rank 2n Minahan-Nemeschansky E6 theories. Finally we derive conformal Lagrangians for four dimensional theories obtained by compactify ing the E-string on genus g > 1 surface with zero flux. The pairs of dual Lagrangians at the weakly coupled loci have different symmetries which are broken on a general point of the conformal manifold. We match the dimensi ons of the conformal manifolds\, symmetries on the generic locus of the co nformal manifold\, anomalies\, and supersymmetric indices. The simplicity of the procedure suggests that such dualities are ubiquitous. DTSTART;TZID=Asia/Jerusalem:20191126T103000 DTEND;TZID=Asia/Jerusalem:20191126T113000 SEQUENCE:0 SUMMARY:Shlomo Razamat URL:https://phsites.technion.ac.il/strings/event/shlomo-razamat-5/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\ntitle: N=1 co nformal dualities

\nabstract: We consider on one hand the possibilit y that a supersymmetric N = 1 conformal gauge theory has a strongly couple d locus on the conformal manifold at which a different\, dual\, conformal gauge theory becomes a good weakly coupled description. On the other hand we discuss the possibility that strongly coupled theories\, e.g. SCFTs in class S\, having exactly marginal N = 1 deformations admit a weakly couple d gauge theory description on some locus of the conformal manifold. We pre sent a simple algorithm to search for such dualities and discuss several c oncrete examples. In particular we find conformal duals for N = 1 SQCD mod els with G2 gauge group and a model with SU(4) gauge group in terms of sim ple quiver gauge theories. We also find conformal weakly coupled quiver th eory duals for a variety of class S theories: T4\, R0\,4\, R2\,5\, and ran k 2n Minahan-Nemeschansky E6 theories. Finally we derive conformal Lagrang ians for four dimensional theories obtained by compactifying the E-string on genus g > 1 surface with zero flux. The pairs of dual Lagrangians at th e weakly coupled loci have different symmetries which are broken on a gene ral point of the conformal manifold. We match the dimensions of the confor mal manifolds\, symmetries on the generic locus of the conformal manifold\ , anomalies\, and supersymmetric indices. The simplicity of the procedure suggests that such dualities are ubiquitous.

\n END:VEVENT BEGIN:VEVENT UID:01issq4ups20e2mho9vm6anu6t@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Integrability and Renormalization under TT¯\nAbstract: S mirnov and Zamolodchikov recently introduced a new class of two-dimensiona l quantum field theories\, defined through a differential change of any ex isting theory by the determinant of the stress-tensor. From this TT¯ flow equation one can find a simple expression for both the energy spectrum and the S-matrix of the TT¯ deformed theories. Our goal is to find the renorm alized Lagrangian of the TT¯ deformed theories. In the context of the TT¯ deformation of an integrable theory\, the deformed theory is also integrab le and\, correspondingly\, the S-matrix factorizes into two-to-two S-matri ces. One may thus hope to be able to extract the renormalized Lagrangian f rom the S-matrix. We do this explicitly for the TT¯ deformation of a free massive scalar\, to second order in the deformation parameter. Once one ha s the renormalized Lagrangian one can\, in principle\, compute all other o bservables\, such as correlation functions. We briefly discuss this\, as w ell as the relation between the renormalized Lagrangian\, the TT¯ flow equ ation\, and the S-matrix. DTSTART;TZID=Asia/Jerusalem:20191126T120000 DTEND;TZID=Asia/Jerusalem:20191126T130000 SEQUENCE:0 SUMMARY:Vladimir Rosenhaus (IAS) URL:https://phsites.technion.ac.il/strings/event/vladimir-rosenhaus-ias-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Integr ability and Renormalization under TT¯

\nAbstract: Smirnov and Zamolo dchikov recently introduced a new class of two-dimensional quantum field t heories\, defined through a differential change of any existing theory by the determinant of the stress-tensor. From this TT¯ flow equation one can find a simple expression for both the energy spectrum and the S-matrix of the TT¯ deformed theories. Our goal is to find the renormalized Lagrangian of the TT¯ deformed theories. In the context of the TT¯ deformation of an integrable theory\, the deformed theory is also integrable and\, correspo ndingly\, the S-matrix factorizes into two-to-two S-matrices. One may thus hope to be able to extract the renormalized Lagrangian from the S-matrix. We do this explicitly for the TT¯ deformation of a free massive scalar\, to second order in the deformation parameter. Once one has the renormalize d Lagrangian one can\, in principle\, compute all other observables\, such as correlation functions. We briefly discuss this\, as well as the relati on between the renormalized Lagrangian\, the TT¯ flow equation\, and the S -matrix.

\n END:VEVENT BEGIN:VEVENT UID:03q6m5bd1dpgm87asugkv7d9gu@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191201T143000 DTEND;TZID=Asia/Jerusalem:20191201T153000 SEQUENCE:0 SUMMARY:Nele Callebaut URL:https://phsites.technion.ac.il/strings/event/nele-callebaut/ END:VEVENT BEGIN:VEVENT UID:mve1s496edd4nvhb8hdah5alns@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20191202T113000 DTEND;TZID=Asia/Jerusalem:20191202T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Shai Chester\, Title: N=2* Free energ y to all orders in 1/N and non-perturbative AdS/CFT URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-shai-chester-title-n2-free-energy-to-all-orders-in-1-n-and-non-perturbat ive-ads-cft-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:0k925r4bs4veatq4bnbs2l3aqe@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20191208T143000 DTEND;TZID=Asia/Jerusalem:20191208T153000 SEQUENCE:0 SUMMARY:Paolo Milan URL:https://phsites.technion.ac.il/strings/event/paolo-milan/ END:VEVENT BEGIN:VEVENT UID:efvd92ueriosug4vhmst11ma3c@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20191209T113000 DTEND;TZID=Asia/Jerusalem:20191209T133000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Shahar Hadar\, Title: Signatures of c onformal symmetry in black holes URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-shahar-hadar-title-signatures-of-conformal-symmetry-in-black-holes-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:64ngu1ja3huv6c98bm3594421n@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: TTbar-deformed CFT as a non-critical string\nAbstract: \nI will present a non-critical world-sheet string theory action as a prop osed description of the TTbar deformation of a 2D CFT with general central charge. This talk will be based on 1910.13578. DTSTART;TZID=Asia/Jerusalem:20191210T103000 DTEND;TZID=Asia/Jerusalem:20191210T113000 SEQUENCE:0 SUMMARY:Nele Callebaut URL:https://phsites.technion.ac.il/strings/event/nele-callebaut-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: TTbar- deformed CFT as a non-critical string

\nAbstract:

\nI will pr esent a non-critical world-sheet string theory action as a proposed descri ption of the TTbar deformation of a 2D CFT with general central charge. Th is talk will be based on 1910.13578.

\n END:VEVENT BEGIN:VEVENT UID:3fm5rkqtvcfj35ddg3m8f6ek2j@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Vector model in higher dimension\nAbstract: I will expla in why we study UV behaviour of the O(N) vector\nmodel with quartic intera ction in 4 < d < 6 dimensions and present a\nnumber of calculations relate d to the CFT data of the model at the UV\nfixed point. DTSTART;TZID=Asia/Jerusalem:20191210T120000 DTEND;TZID=Asia/Jerusalem:20191210T130000 SEQUENCE:0 SUMMARY:Misha Smolkin URL:https://phsites.technion.ac.il/strings/event/misha-smolkin/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Vector model in higher dimension

\nAbstract: I will explain why we study U
V behaviour of the O(N) vector

\nmodel with quartic interaction in 4
< d < 6 dimensions and present a

\nnumber of calculations related to
the CFT data of the model at the UV

\nfixed point.

A

\n END:VEVENT BEGIN:VEVENT UID:2qcom6m2v5qogs8oeme4rhe848@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: From Scattering Amplitudes to Gravitational Waves\nAbstr act: The remarkable detection of gravitational waves by the LIGO/Virgo\nc ollaboration has opened a new window into the cosmos. In this\ncolloquium we explain how particle theorists can help out with\nhigh-precision calcu lations of effective Hamiltonians for predicting\ngravitational-wave emiss ion from compact astrophysical objects.\nWe explain reamarkable adavances in our ability to compute\nscattering amplitudes in quantum gravity based on ideas such as the\nduality between color and kinematics\, double-copy r elations and\ngeneralized unitarity. We then show how these ideas can be harnessed\nusing modern ideas in effective field theory to obtain new and \ndifficult to obtain general relativity corrections to the problem of\nbl ack hole or neutron star inspirals. DTSTART;TZID=Asia/Jerusalem:20191224T103000 DTEND;TZID=Asia/Jerusalem:20191224T113000 SEQUENCE:0 SUMMARY:Zvi Bern (UCLA) URL:https://phsites.technion.ac.il/strings/event/zvi-bern-ucla/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: From S cattering Amplitudes to Gravitational Waves

\nAbstract: The remarkab
le detection of gravitational waves by the LIGO/Virgo

\ncollaboratio
n has opened a new window into the cosmos. In this

\ncolloquium we e
xplain how particle theorists can help out with

\nhigh-precision calc
ulations of effective Hamiltonians for predicting

\ngravitational-wav
e emission from compact astrophysical objects.

\nWe explain reamarkab
le adavances in our ability to compute

\nscattering amplitudes in qua
ntum gravity based on ideas such as the

\nduality between color and k
inematics\, double-copy relations and

\ngeneralized unitarity. We th
en show how these ideas can be harnessed

\nusing modern ideas in effe
ctive field theory to obtain new and

\ndifficult to obtain general re
lativity corrections to the problem of

\nblack hole or neutron star i
nspirals.

Title : Chern -Simons-Matter Duality and Large-N Phase Diagram

\nAbstract : Pure C hern-Simons (CS) theory looks quite boring at a first glance. However\, th e theory becomes highly interesting and rich dynamics come out of it once we couple it to dynamical matter fields. It is quite remarkable that the l arge-N limit of this matter CS theory is exactly solvable. This led to the understanding of the fact that CS gauged fundamental regular (free) fermi on theories and CS gauged fundamental critical (Wilson-Fisher) boson theor ies are not different but secretly the same theory\, related by the level- rank duality. In this talk\, I will show the extension of this duality whe n the boson field gets condensed triggering the Higgs mechanism. In the ne xt step\, extending this duality to the regular boson/critical fermion cas e\, we will compute the exact quantum effective potential of the regular b oson theory and explore the large-N phase diagram of this theory.

\n END:VEVENT BEGIN:VEVENT UID:43ib2fqrnajdc58l93t6dcec84@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20200112T143000 DTEND;TZID=Asia/Jerusalem:20200112T153000 SEQUENCE:0 SUMMARY:Assaf Lanir URL:https://phsites.technion.ac.il/strings/event/assaf-lanir/ END:VEVENT BEGIN:VEVENT UID:q3piiek1sm09367qt8lupoh8o8@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20200113T113000 DTEND;TZID=Asia/Jerusalem:20200113T133000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Itamar Hason\, Title: Anomaly Matchin g in the Symmetry Broken Phase URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-itamar-hason-title-anomaly-matching-in-the-symmetry-broken-phase-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:67rgrop9t2s9ubum4918vlmjdh@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:“Turbulence\, CFT and Random Geometry”\nWe propose a field theo ry description of steady state incompressible fluid turbulence at the iner tial range of scales in a general number of space dimensions.\nThe theory consists of a Kolmogorov linear scaling mean field theory dressed by a Nam bu-Goldstone dilaton mode that induces a random measure on the inertial ra nge.\nWe derive a KPZ-type formula for the anomalous scalings of the veloc ity structure functions\, the velocity gradients and the local energy diss ipation\, and relate the dimensionless intermittency parameter to the boun dary conformal anomaly. DTSTART;TZID=Asia/Jerusalem:20200114T103000 DTEND;TZID=Asia/Jerusalem:20200114T113000 SEQUENCE:0 SUMMARY:Yaron Oz URL:https://phsites.technion.ac.il/strings/event/yaron-oz/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n“Turbulence\, CFT and Random Geometry”

\nWe propose a field theory description of
steady state incompressible fluid turbulence at the inertial range of sca
les in a general number of space dimensions.

\nThe theory consists of
a Kolmogorov linear scaling mean field theory dressed by a Nambu-Goldston
e dilaton mode that induces a random measure on the inertial range.

\nWe derive a KPZ-type formula for the anomalous scalings of the velocity
structure functions\, the velocity gradients and the local energy dissipat
ion\, and relate the dimensionless intermittency parameter to the boundary
conformal anomaly.

Title: Exact results for 5d SCFTs with holographic duals in Type IIB

\nAbstract: Five-dimensional superconformal field theories (5d SCFTs) play an interest ing role in the general understanding of quantum field theory. They provid e strongly-coupled UV fixed points with remarkable features for many pertu rbatively non-renormalizable gauge theories\, and upon compactification th ey provide new insights into lower-dimensional theories. In this talk rece nt progress in the holographic and large-N field theory understanding of 5 d SCFTs engineered by 5-brane webs in Type IIB string theory will be discu ssed.

\n END:VEVENT BEGIN:VEVENT UID:4njmvhclsiikt1j1chrn95ul87@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20200119T143000 DTEND;TZID=Asia/Jerusalem:20200119T153000 SEQUENCE:0 SUMMARY:Belal Nazzal URL:https://phsites.technion.ac.il/strings/event/belal-nazzal/ END:VEVENT BEGIN:VEVENT UID:cl5c7vjb9nq1e63ib3d095om54@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20200120T113000 DTEND;TZID=Asia/Jerusalem:20200120T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Dmitry Melnikov\, Title: Knots and Qu antum Physics URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-dmitry-melnikov-title-knots-and-quantum-physics-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:4e3ud2ape0k718ip80nlc3unlh@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20200126T143000 DTEND;TZID=Asia/Jerusalem:20200126T153000 SEQUENCE:0 SUMMARY:Shlomo Razamat URL:https://phsites.technion.ac.il/strings/event/shlomo-razamat-4/ END:VEVENT BEGIN:VEVENT UID:h7jr3adeq84s0m1p00duckovqk@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20200127T113000 DTEND;TZID=Asia/Jerusalem:20200127T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Dean Carmi\, Title: Loop Diagrams in Anti-deSitter Space URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-dean-carmi-title-loop-diagrams-in-anti-desitter-space-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:3dl6v8jh8etvcthi5jprabqilr@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Branes and the Swampland\nAbstract: In this talk\, I wil l discuss consistency of N=(1\,0) supergravity theories in 10d and in 6d b y using 1/2 BPS string probes. Such string probes are expected to exist du e to completeness of the spectrum of charged branes in a gravitational the ory.I will show that some of the theories with N=(1\,0) supersymmetry in 1 0d and 6d\, which are otherwise consistent looking\, belong to the Swampla nd by showing that the central charge on the string probes in those gravit y theories are too small to host unitary representationsof the current alg ebra for the bulk gauge symmetries. DTSTART;TZID=Asia/Jerusalem:20200204T103000 DTEND;TZID=Asia/Jerusalem:20200204T113000 SEQUENCE:0 SUMMARY:Hee-Cheol Kim (POSTECH\, Korea) URL:https://phsites.technion.ac.il/strings/event/hee-cheol-kim-postech-kore a/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Branes and the Swampland

\nAbstract: In this talk\, I will discuss consist ency of N=(1\,0) supergravity theories in 10d and in 6d by using 1/2 BPS s tring probes. Such string probes are expected to exist due to completeness of the spectrum of charged branes in a gravitational theory.I will show t hat some of the theories with N=(1\,0) supersymmetry in 10d and 6d\, which are otherwise consistent looking\, belong to the Swampland by showing tha t the central charge on the string probes in those gravity theories are to o small to host unitary representationsof the current algebra for the bulk gauge symmetries.

\n END:VEVENT BEGIN:VEVENT UID:1qnr4cfj4nefdvve8t19balcen@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title “AdS/CFT at finite string coupling”\nAbstractWe consider the S-matrix in Type IIB/IIA string theory\, and compare it to correlators of the stress tensor multiplet in various holographic CFTs. On flat space \, the leading small momentumcorrections to these S-matrices are protected and known at finite string coupling. At finite string coupling\, Type IIB on AdS_5 x S_5 is dual to 4dN=4 SYM at large N and finite complexified co upling tau\, while Type IIA on AdS_4 x S^7/Z_k is dual to 3d ABJM with Che rn-Simons level k at large N and fixed N/k^5. In each case\, we computethe CFT correlator to several orders in 1/N using supersymmetric localization \, and find that it matches the known S-matrix in the flat space limit\, w hich is the first non-perturbative (in string coupling) check of AdS/CFT. In the Type IIB case\, the 1/N coefficientsare modular functions of tau un der S-duality\, which receive infinite instanton corrections. In the Type IIA case\, the 1/N coefficients receive no instanton corrections\, and int erpolate from M-theory at small k (large string coupling) to Type IIA at l arge k(weak string coupling) DTSTART;TZID=Asia/Jerusalem:20200204T120000 DTEND;TZID=Asia/Jerusalem:20200204T130000 SEQUENCE:0 SUMMARY:Shai Chester URL:https://phsites.technion.ac.il/strings/event/shai-chester/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

<
span>Title “AdS/CFT at finite string coupling”

Abstract

We consider the S-matr
ix in Type IIB/IIA string theory\, and compare it to correlat
ors of the stress tensor multiplet in various holographic CFTs. On flat sp
ace\, the leading small momentumcorrections to these S-matrices are protec
ted and known at finite string coupling. At finite string coupling\, Type IIB on AdS_5 x S_5 is dual to 4dN=4
SYM at large N and finite complexified coupling tau\, while Type IIA on AdS_4 x S^7/Z_k is dual to 3d ABJM with Chern-Sim
ons level k at large N and fixed N/k^5. In each case\, we computethe CFT c
orrelator to several orders in 1/N using supersymmetric localization\, and
find that it matches the known S-matrix in the flat space limit\, which i
s the first non-perturbative (in string coupling) check of AdS/CFT. In the
Type IIB case\, the 1/N coefficientsare modular functions of tau under S-
duality\, which receive infinite instanton corrections. In the Type IIA ca
se\, the 1/N coefficients receive no instanton corrections\, and interpola
te from M-theory at small k (large string coupling) to Type IIA at large k
(weak string coupling)

Title: Dynami cs near a holographic first order phase transition

\nAbstract:

\nIn this talk I will discuss our recent work on time dependent dynamics for theories with a first order phase transition using a holographic descr iption. I will make a brief review of our previous work on holographic pha se separation which leads to a coupleof questions. In particular I will an alyze the collisions and merging of domains of different phases\, boost in variant evolution and some conclusions for the future study of the dynamic s of a confinement-deconfinement transition.

\n END:VEVENT BEGIN:VEVENT UID:4ohu1rj7ln09c5jpg751hrmhg0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: The “Hubble Tension”: a growing disagreement between ear ly and late Universe observations\nAbstract: \nThere are two approaches to estimating the current expansion rate of the Universe\, which is parametr ised by the Hubble constant H0. One attempts to measure it directly (the m ost famous example of which relies on calibrating a distance ladder toward s standard-candletype-Ia supernovae in our local cosmic neighbourhood). Th e other is to predict its value based on information from the distant earl y Universe (such as the baryon acoustic oscillation scale\, which can be e xtracted from cosmic microwave background measurements)and assuming the st andard cosmological model\, known as ΛCDM. One of the most pressing myster ies in cosmology today is why H0 measurements based on these two approache s are growing in tension (the most recent assessments are up to ~5sigma di screpant)\, possiblyhinting at a failure of ΛCDM.\nI will describe the cur rent status of different measurements of the expansion rate (based on a wi de range of observables)\, point out their caveats and outline their prosp ects for improvement. From the theoretical point of view\, I will motivate a usefulway of reframing the tension\, and discuss the clues we have towa rds solving it with new physics beyond ΛCDM. DTSTART;TZID=Asia/Jerusalem:20200211T120000 DTEND;TZID=Asia/Jerusalem:20200211T130000 SEQUENCE:0 SUMMARY:Ely Kovetz URL:https://phsites.technion.ac.il/strings/event/ely-kovetz/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: The “H ubble Tension”: a growing disagreement between early and late Universe obs ervations

\nAbstract:

\nThere are two approaches to estimatin
g the current expansion rate of the Universe\, which is parametrised by th
e Hubble constant H0. One attempts to measure it directly (the most famous
example of which relies on calibrating a distance ladder towards standard
-candletype-Ia supernovae in our local cosmic neighbourhood). The other is
to predict its value based on information from the distant early Universe
(such as the baryon acoustic oscillation scale\, which can be extracted f
rom cosmic microwave background measurements)and assuming the standard cos
mological model\, known as ΛCDM. One of the most pressing mysteries in cos
mology today is why H0 measurements based on these two approaches are grow
ing in tension (the most recent assessments are up to ~5sigma discrepant)\
, possiblyhinting at a failure of ΛCDM.

\nI will describe the current
status of different measurements of the expansion rate (based on a wide r
ange of observables)\, point out their caveats and outline their prospects
for improvement. From the theoretical point of view\, I will motivate a u
sefulway of reframing the tension\, and discuss the clues we have towards
solving it with new physics beyond ΛCDM.

Title: Random
boundary geometry and gravity dual of $Tbar{T}$ deformation

\nAbstra
ct: We study the random geometry approach to the $Tbar{T}$ deformation of
2d conformal field theory developed by Cardy and discuss its realization i
n a gravity dual. In this representation the gravity dual of the $Tbar{T}$
deformation becomes a straightforward translation of the field theory lan
guage and the dual geometry is AdS$_3$ or BTZ black holes without a finite
cutoff but instead with random boundary diffeomorphisms\, reflecting an i
ncrease of degrees of freedom in the flow to the UV by an irrelevant geome
tric $Tbar{T}$ operator. We streamline the method of computation and calcu
late the energy spectrum and the thermal free energy in a manner that can
be directly translated into the gravity dual language. We further generali
ze this approach to correlation functions and reproduce the all-order resu
lt with universal logarithmic corrections computed by Cardy in a different
method. Thus this version of gravity dual of the $Tbar{T}$ deformation wo
rks not only for the energy spectrum and the thermal free energy but also
for correlation functions.

The title: “ A new topological symmetry of asymptotically flat spacetimes”

\nI wi ll show that asymptotically flat spacetimes are invariant\, in addition to the BMS group\, under a new dual supertranslation symmetry. The correspon ding new conserved charges are akin to the large magnetic U(1) charges in QED and they reveal a rich topologicalstructure exhibited by the asymptoti c metric as well as by the Hilbert space of asymptotic states. Among the r esults that I will describe in this talk are the construction of a gravita tional-magnetic monopole solution analogous to the Wu-Yang monopole in QED and the discovery of a new gravitational duality akin to electric-magnetic duality in field theory.

\n END:VEVENT BEGIN:VEVENT UID:3238fsfbmi3ucq6t8vgs9kbt1r@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Instantons in five-dimensional O(N) vector models \nAbst ract: In this talk\, I will review the construction of O(N) vector models above four dimensions\, and explain why one might think that\, in five di mensions\, there should exist O(N)-invariant CFTs at sufficiently large N. However\, a closer look at theseconstructions reveals that the CFTs are non-unitary because instanton effects lead to small imaginary parts of sca ling dimensions and OPE coefficients. DTSTART;TZID=Asia/Jerusalem:20200317T103000 DTEND;TZID=Asia/Jerusalem:20200317T113000 SEQUENCE:0 SUMMARY:Silviu Pufu\, Princeton (Postponed due to corona) URL:https://phsites.technion.ac.il/strings/event/ramy-brustein-4/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Instan tons in five-dimensional O(N) vector models

\nAbstract: In this ta lk\, I will review the construction of O(N) vector models above four dimen sions\, and explain why one might think that\, in five dimensions\, there should exist O(N)-invariant CFTs at sufficiently large N. However\, a clo ser look at theseconstructions reveals that the CFTs are non-unitary becau se instanton effects lead to small imaginary parts of scaling dimensions a nd OPE coefficients.

\n END:VEVENT BEGIN:VEVENT UID:28jg4qsbm6uot5o98p235hb790@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: 5d SCFTs and Graphs \nAbstract:\nI will give an overview of recent progress towards classifying 5d N=1 SCFTs. The main tool is the realization in terms of M-theory on singular Calabi-Yau three-folds\, how ever we abstract the information about the UV fixed points into graphs\, a nd explain howthese encode RG-flows between 5d SCFTs\, weakly coupled desc riptions as well as dualities. DTSTART;TZID=Asia/Jerusalem:20200317T113000 DTEND;TZID=Asia/Jerusalem:20200317T123000 SEQUENCE:0 SUMMARY:Skura Schafer-Nameki\, Oxford (Postponed due to corona) URL:https://phsites.technion.ac.il/strings/event/skura-schafer-nameki/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: 5d SCF Ts and Graphs

\nAbstract:

\nI will give an overview of recent
progress towards classifying 5d N=1 SCFTs. The main tool is the realizatio
n in terms of M-theory on singular Calabi-Yau three-folds\, however we abs
tract the information about the UV fixed points into graphs\, and explain
howthese encode RG-flows between 5d SCFTs\, weakly coupled descriptions as
well as dualities.

Title: 5d SCF Ts and Graphs

\nI will give an overview of recent progress towards c lassifying 5d N=1 SCFTs. The main tool is the realization in terms of M-th eory on singular Calabi-Yau three-folds\, however we abstract the informat ion about the UV fixed points into graphs\, and explain howthese encode RG -flows between 5d SCFTs\, weakly coupled descriptions as well as dualities .

\n END:VEVENT BEGIN:VEVENT UID:527joup135vh5b638j9pt1ids2@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:Continuum Quantum Field Theories for Fractons\nAbstract: Starting with a lattice system at short distances\, its long-distance beha vior is captured by a continuum Quantum Field Theory (QFT). This descript ion is universal\, i.e. it is independent of most of the details of the mi croscopic system. Surprisingly\, certain recently discovered lattice syste ms\, and in particular models of fractons\, seem to violate this general d ogma. Motivated by this apparent contradiction\, we will present exotic c ontinuum QFTs that describe these systems.\n\nThis will be a zoom joint se minar. The link will be sent to the regular participants of the joint sem inar. Other people who are interested to attend it send a message to \ncob i@tauex.tau.ac.il DTSTART;TZID=Asia/Jerusalem:20200421T150000 DTEND;TZID=Asia/Jerusalem:20200421T160000 SEQUENCE:0 SUMMARY:Nathan Seiberg\, IAS URL:https://phsites.technion.ac.il/strings/event/nathan-seiberg-ias-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle:Continu um Quantum Field Theories for Fractons

\nAbstract: Starting with a l attice system at short distances\, its long-distance behavior is captured by a continuum Quantum Field Theory (QFT). This description is universal\ , i.e. it is independent of most of the details of the microscopic system. Surprisingly\, certain recently discovered lattice systems\, and in parti cular models of fractons\, seem to violate this general dogma. Motivated by this apparent contradiction\, we will present exotic continuum QFTs tha t describe these systems.

\n\nThis will be a zoom joint seminar. The link will be sent to the regular participants of the joint seminar. Othe r people who are interested to attend it send a message to

\n\n< /BODY> END:VEVENT BEGIN:VEVENT UID:d1mnn9k29khmqfogdep0m0ifds@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20200504T113000 DTEND;TZID=Asia/Jerusalem:20200504T123000 LOCATION:https://technion.zoom.us/j/92282641204 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Matti \, Title: Holographic (pinned) stripes and magnetic effects URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-matti-title-holographic-pinned-stripes-and-magnetic-effects-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nA

\n END:VEVENT BEGIN:VEVENT UID:4t6a2ba89bqcu73lthbjp8p30h@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: Slava Rychkov (IHES\, Bures-sur-Yvette)\ntitle:Supersymmetry a nd its absence in the Random Field Ising Model.\nAbstract:We will discuss the phase transition in the Ising model with magnetic impurities. By one k ind of lore\, this leads to a non-unitary supersymmetric CFT with scalar s upercharges (Parisi-Sourlas supersymmetry). By further lore\, Parisi-Sourl as SCFTin D dimensions is equivalent to a non-SUSY CFT in D-2 dimensions. It is known that this story is not fully correct\, but we will put some of it on firmer ground using non-perturbative CFT methods\, and we will prop ose a scenario for why the full conjecture isfailing. Joint work with Apra tim Kaviraj and Emilio Trevisani.\n \n \nThis will be a zoom joint seminar . The link will be sent to the regular participants of the joint seminar. Other people who are interested to attend it send a message to \ncobi@tau ex.tau.ac.il DTSTART;TZID=Asia/Jerusalem:20200505T113000 DTEND;TZID=Asia/Jerusalem:20200505T123000 SEQUENCE:0 SUMMARY:Slava Rychkov\, IHES\, Bures-sur Yvette URL:https://phsites.technion.ac.il/strings/event/slava-rychkov-ihes-ens/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nSlava Rychko v (IHES\, Bures-sur-Yvette)

\ntitle:

Supersymmetry and its abse
nce in the Random Field Ising Model.

Abstract:

We will discus
s the phase transition in the Ising model with magnetic impurities. By one
kind of lore\, this leads to a non-unitary supersymmetric CFT with scalar
supercharges (Parisi-Sourlas supersymmetry). By further lore\, Parisi-Sou
rlas SCFTin D dimensions is equivalent to a non-SUSY CFT in D-2 dimensions
. It is known that this story is not fully correct\, but we will put some
of it on firmer ground using non-perturbative CFT methods\, and we will pr
opose a scenario for why the full conjecture isfailing. Joint work with Ap
ratim Kaviraj and Emilio Trevisani.

This w ill be a zoom joint seminar. The link will be sent to the regular partici pants of the joint seminar. Other people who are interested to attend it s end a message to

\n\n END:VEVENT BEGIN:VEVENT UID:4f0pd6ra7ecda1fq4dahp21n0m@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:title: Holographic Pseudo Entropy\nabstract: In this talk\, we will study a generalization of holographic entanglement entro\npy. This qu antity is defined by a mininal area surface in an asymptoticaly AdS\n spac e with Euclidean time-dependence. We will give its CFT counterpart\, which \n we call pseudo entropy. We will also provide quantum information theore tic in\nterpretations of this quantity in several specific examples of qub it systems\,\nwhich help us to understand our results of pseudo entropy in CFTs and gravity\nduals. DTSTART;TZID=Asia/Jerusalem:20200512T110000 DTEND;TZID=Asia/Jerusalem:20200512T120000 SEQUENCE:0 SUMMARY:Tadashi Takayanagi\, YITP Kyoto URL:https://phsites.technion.ac.il/strings/event/tadashi-takayanagi-yitp-ky oto/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\ntitle: Hologr aphic Pseudo Entropy

\nabstract: In this talk\, we will study a gene
ralization of holographic entanglement entro

\npy. This quantity is d
efined by a mininal area surface in an asymptoticaly AdS

\n space wit
h Euclidean time-dependence. We will give its CFT counterpart\, which

\n we call pseudo entropy. We will also provide quantum information theor
etic in

\nterpretations of this quantity in several specific examples
of qubit systems\,

\nwhich help us to understand our results of pseu
do entropy in CFTs and gravity

\nduals.

title: “Holog raphic renormalization group flows on curved manifolds and F-theorems” \n\n

Abstract: Holographic RG flows will be studied where the QFT is b oth on flat and curved manifolds\, and their general structure will be ana lyzed.

\nQuantum phase transitions driven by curvature will be found and studied.

\nThe results will be used to propose new F-functions in 3 dimensions that may be generalizable also to higher dimensions.

\n \nThis will be a zoom joint seminar. The link will be sent to the regu lar participants of the joint seminar. Other people who are interested to attend it send a message to

\n\n END:VEVENT BEGIN:VEVENT UID:0js5bb3a1hutkh6mqkp8p1frmu@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title – An Analytical Toolkit for the S-matrix Bootstrap\nAbstr act – Motivated by the success of the conformal bootstrap\, we revisit the implications of elastic unitarity and extended analyticity for the S-matr ix of unitary\, relativistic\, gapped theories in d>2 spacetime dimensions . We consider two natural expansion of the non-perturbative amplitude — th e threshold and the large spin expansions\, as well as the relation betwee n them. Finally\, we discuss the implication of these to the numerical S-m atrix bootstrap. DTSTART;TZID=Asia/Jerusalem:20200526T113000 DTEND;TZID=Asia/Jerusalem:20200526T123000 SEQUENCE:0 SUMMARY:Amit Sever\, Tau Cern URL:https://phsites.technion.ac.il/strings/event/amit-sever-tau-cern/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle – An An
alytical Toolkit for the S-matrix Bootstrap

\nAbstract – Motivated by
the success of the conformal bootstrap\, we revisit the implications of e
lastic unitarity and extended analyticity for the S-matrix of unitary\, re
lativistic\, gapped theories in d>2 spacetime dimensions. We consider two
natural expansion of the non-perturbative amplitude — the threshold and th
e large spin expansions\, as well as the relation between them. Finally\,
we discuss the implication of these to the numerical S-matrix bootstrap.\n
END:VEVENT
BEGIN:VEVENT
UID:45um4ld11qkbcjb6hdfcdakm7s@google.com
DTSTAMP:20211203T041325Z
CATEGORIES;LANGUAGE=en-US:Neve Shalom
CONTACT:
DESCRIPTION:Title: An overview of the Swampland\nAbstract:The Swampland pro
gram aims at distinguishingeffective theories which can be consistently co
mpleted into quantum gravity in the ultraviolet from those which cannot. T
he main objective of this talk is to present an introduction to the field.
I will also present a brief overview of some recentwork which proposes an
d tests some Swampland constraints\, specifically relating to scale separa
tion in anti-deSitter spaces and to the presence of gravitational instanto
n corrections in supersymmetric theories.
DTSTART;TZID=Asia/Jerusalem:20200602T113000
DTEND;TZID=Asia/Jerusalem:20200602T123000
SEQUENCE:0
SUMMARY:Eran Palti BGU\, MPI Munich
URL:https://phsites.technion.ac.il/strings/event/eran-palti-bgu-mpi-munich/
X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

Title : An overview of the Swampland

\nAbstract:The Swampla nd program aims at distinguishingeffective theories which can be consisten tly completed into quantum gravity in the ultraviolet from those which can not. The main objective of this talk is to present an introduction to the field. I will also present a brief overview of some recentwork which proposes and tests some Swampland constraints\, specifically relating to scale separation in anti-deSitter spaces and to the presence of gravitational instanton corrections in supersymmetric theories.< /font>

\n\n END:VEVENT BEGIN:VEVENT UID:13pdh3246k1ndvcu5iu869db9f@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:\nColor Confinement and Bose-Einstein Condensation\n\nAbs tract: \nWe argue that partially-confined\, partially-deconfined phase\, i n which SU(M) subgroup of SU(N) gauge group deconfines\, exists between co mpletely confined phase and completely deconfinedphases. In the weak-coupl ing regime\, we describe this phase analytically\, by using the techniques developed by Aharony and collaborators in 2003. (If time permits\, we sho w the evidence at strong coupling as well\, by using the Monte Carlo metho d.) Based on this”partial confinement” picture\, we propose a unified desc ription of color confinement in the large-N gauge theory and Bose-Einstein condensation (BEC) in the system of identical bosons. Indistinguishabilit y associated with the symmetry group — SU(N) in gaugetheory\, and S_N perm utations in the system of identical bosons — is crucial for the formation of the condensed (confined) phase. We relate standard criteria\, based on off-diagonal long range order (ODLRO) for BEC and the Polyakov loop for ga uge theory. Theconstant offset of the distribution of the phases of the Po lyakov loop corresponds to ODLRO. This viewpoint may have implications for confinement at finite N\, and for quantum gravity via gauge/gravity duali ty. DTSTART;TZID=Asia/Jerusalem:20200609T113000 DTEND;TZID=Asia/Jerusalem:20200609T123000 SEQUENCE:0 SUMMARY:Masanori Hanada\, ( Southampton U.\, Surrey U. URL:https://phsites.technion.ac.il/strings/event/masanori-hanada-southampto n-u-surrey-u/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle:\n

Color Confinement and Bose-Einstein
Condensation\n

\n

Abstract: \n

We argue that partially-confined\, partially-deconfined phase\, in wh
ich SU(M) subgroup of SU(N) gauge group deconfines\, exists between comple
tely confined phase and completely deconfinedphases. In the weak-coupling
regime\, we describe this phase analytically\, by using the techniques dev
eloped by Aharony and collaborators in 2003. (If time permits\, we show th
e evidence at strong coupling as well\, by using the Monte Carlo method.)
Based on this”partial confinement” picture\, we propose a unified descript
ion of color confinement in the large-N gauge theory and Bose-Einstein con
densation (BEC) in the system of identical bosons. Indistinguishability as
sociated with the symmetry group — SU(N) in gaugetheory\, and S_N permutat
ions in the system of identical bosons — is crucial for the formation of t
he condensed (confined) phase. We relate standard criteria\, based on off-
diagonal long range order (ODLRO) for BEC and the Polyakov loop for gauge
theory. Theconstant offset of the distribution of the phases of the Polyak
ov loop corresponds to ODLRO. This viewpoint may have implications for con
finement at finite N\, and for quantum gravity via gauge/gravity duality.
\n
END:VEVENT
BEGIN:VEVENT
UID:2qprpg6kb047d0qe9sqop1c9qa@google.com
DTSTAMP:20211203T041325Z
CATEGORIES;LANGUAGE=en-US:Neve Shalom
CONTACT:
DESCRIPTION:D-instantons perturbation theory
DTSTART;TZID=Asia/Jerusalem:20200616T113000
DTEND;TZID=Asia/Jerusalem:20200616T123000
SEQUENCE:0
SUMMARY:Asoke Sen\, Harish-Chandra Res. Inst
URL:https://phsites.technion.ac.il/strings/event/asoke-sen-harish-chandra-r
es-inst/
X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n \\n\\n \\n\\n \\n\\n \\n\\n\n \\n\\n \\n\\n \\n\\n \\n\\n \\n\\n

D-instantons perturbation theory

\n END:VEVENT BEGIN:VEVENT UID:4m7dpk42lfc7qgk2visrvek094@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Boundary Conditions for Chiral Fermions\nAbstract: Iʼll describe boundary conditions for fermions in d=1+1\,\ndimensions\, using t he framework of boundary conformal field theory. Iʼll\nexplain how boundar y states are classified by a mod 2 index\, related to\ntheir SPT phase\, d escribe how one can follow RG flows from one boundary\nstate to another\, and give a novel perspective on the Z_8 classification\nof d=2+1 SPT phase s DTSTART;TZID=Asia/Jerusalem:20200623T113000 DTEND;TZID=Asia/Jerusalem:20200623T123000 SEQUENCE:0 SUMMARY:David Tong\, Cambridge URL:https://phsites.technion.ac.il/strings/event/david-tong-cambridge/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Bounda ry Conditions for Chiral Fermions

\nAbstract: Iʼll describe boundary
conditions for fermions in d=1+1\,

\ndimensions\, using the framewor
k of boundary conformal field theory. Iʼll

\nexplain how boundary sta
tes are classified by a mod 2 index\, related to

\ntheir SPT phase\,
describe how one can follow RG flows from one boundary

\nstate to ano
ther\, and give a novel perspective on the Z_8 classification

\nof d=
2+1 SPT phases

Title:

\n< p>Modularity of supersymmetric partition functions\nAbstract:

\nIn this talk\, I will present a novel modular property of 4d N=1

\nsupersymmetric partition functions of supersymmetric theories with R-sym
metry. It is a generalization of the modular invariance of the supersymmet
ric partitionfunction of two-dimensional supersymmetric theories on a toru
s i.e. of the elliptic genus. It comes from requiring consistency of parti
tionfunctions under gluing and\, among other things\, can be used to reder
ive the supersymmetric Cardy formula for four-dimensional gaugetheories th
at has played a key role in computing the entropy of supersymmetric black
holes.

Title: Def ormations of JT Gravity and Matrix Models\,

\n\nAbstract: I will e xplain how the relation between two-dimensional JT gravity and a matrix mo del — that is a

\nrandom ensemble of quantum systems rather than a s pecific quantum system — can be generalized

\nwhen one perturbs the action of JT gravity to a more generic case. Based on arXiv:2006.13414.

\nSee also arXiv:2006.11317 by Maxfield and Turiaci.

\n\nAnyb ody who is not on the list of the Israel string joint seminar and would li ke to listen to this seminar send your email to cobi@tauex.tau.ac.il and y ou will receive the zoom link

\n END:VEVENT BEGIN:VEVENT UID:3ng7jeutgnf09pd29snnkn2l9b@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: “Non-Symmetries and 2-Dimensional QCD” ?Abstract :\nWe will review the subject of “non-symmetries’’ or “defect symmetries.” We wi ll argue that massless two dimensional QCD admits exponentially many such symmetries and we use them to prove deconfinement as well as to compute ex actly the tension of thestring in the small mass limit. DTSTART;TZID=Asia/Jerusalem:20200901T150000 DTEND;TZID=Asia/Jerusalem:20200901T160000 SEQUENCE:0 SUMMARY:Zohar Komargodski URL:https://phsites.technion.ac.il/strings/event/zohar-komargodski-3/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: “Non-
Symmetries and 2-Dimensional QCD” ?Abstract :

\nWe will review the su
bject of “non-symmetries’’ or “defect symmetries.” We will argue that mass
less two dimensional QCD admits exponentially many such symmetries and we
use them to prove deconfinement as well as to compute exactly the tension
of thestring in the small mass limit.

title: “Huma nly traversable wormholes”

\n END:VEVENT BEGIN:VEVENT UID:11k9cfdor28oebf2dbe1ci9jiu@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Partition functions of the tensionless string\nAbstract: I discuss string theory on AdS3xS3xT4 in the tensionless limit\,with one unit of NS-NS flux. This theory is conjectured to be dual to the symmetric product orbifold CFT. I show how to compute the full string partition fun ction on various locally AdS3 backgrounds\, such as thermal AdS3\, the BTZ black and conical defects\,and find that it is independent of the actual background\, but only depends on the boundary geometry. Consequently\, rep roducing the boundary partition function does not require a sum over bulk geometries\,but rather agrees with the string partition function on any bu lk geometry with the appropriate boundary. I argue that the same mechanism shows the factorization of the bulk partition function when geometries wi th disconnected boundaries are considered. DTSTART;TZID=Asia/Jerusalem:20200915T113000 DTEND;TZID=Asia/Jerusalem:20200915T123000 SEQUENCE:0 SUMMARY:Lorenz Eberhardt URL:https://phsites.technion.ac.il/strings/event/lorenz-eberhardt/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle: Partit ion functions of the tensionless string

\nAbstract: I discuss string theory on AdS3xS3xT4 in the tensionless limit\,with one unit of NS-NS flu x. This theory is conjectured to be dual to the symmetric product orbifold CFT. I show how to compute the full string partition function on various locally AdS3 backgrounds\, such as thermal AdS3\, the BTZ black and conica l defects\,and find that it is independent of the actual background\, but only depends on the boundary geometry. Consequently\, reproducing the boun dary partition function does not require a sum over bulk geometries\,but r ather agrees with the string partition function on any bulk geometry with the appropriate boundary. I argue that the same mechanism shows the factor ization of the bulk partition function when geometries with disconnected b oundaries are considered.

\n END:VEVENT BEGIN:VEVENT UID:3adpt8bs4gi6lm00l1cipqq752@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:\nMerging Swampland Conjectures using strings and membran es\nAbstract:\nIn this talk I will discuss new relations that appear among the Swampland Conjectures when analysing the properties of low codimensio n BPS objects\, in particular strings and membranes in N=1 4D EFTs. I will review the state of the art of the Swamplandprogram and revisit the most important conjectures\, namely the Weak Gravity Conjecture (WGC) and the S wampland Distance Conjecture (SDC). Then I will describe how to apply the WGC to low codimension BPS objects by interpreting the 4d backreaction of these objectsas a classical RG flow of their couplings. Constraints on th e UV charges and tensions get then translated to constraints on the axioni c kinetic terms and scalar potential of the EFT\, which uncovers new relat ions among the Swampland Conjectures. In particular\,we show that the WGC for strings implies the SDC\, by using that infinite distance limits can b e realised as RG flow endpoints of fundamental axionic strings. Similarly\ , WGC-saturating membranes generate a scalar potential satisfying the de S itter Conjecture. DTSTART;TZID=Asia/Jerusalem:20200922T160000 DTEND;TZID=Asia/Jerusalem:20200922T170000 SEQUENCE:0 SUMMARY:Irene Valenzuela ( Harvard) URL:https://phsites.technion.ac.il/strings/event/irene-valenzuela-harvard/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nTitle:

\n< p>Merging Swampland Conjectures using strings and membranes\nAbstra
ct:

\nIn this talk I will discuss new relations that appear among the
Swampland Conjectures when analysing the properties of low codimension BP
S objects\, in particular strings and membranes in N=1 4D EFTs. I will rev
iew the state of the art of the Swamplandprogram and revisit the most impo
rtant conjectures\, namely the Weak Gravity Conjecture (WGC) and the Swamp
land Distance Conjecture (SDC). Then I will describe how to apply the WGC
to low codimension BPS objects by interpreting the 4d backreaction of thes
e objectsas a classical RG flow of their couplings. Constraints on the UV
charges and tensions get then translated to constraints on the axionic ki
netic terms and scalar potential of the EFT\, which uncovers new relations
among the Swampland Conjectures. In particular\,we show that the WGC for
strings implies the SDC\, by using that infinite distance limits can be re
alised as RG flow endpoints of fundamental axionic strings. Similarly\, WG
C-saturating membranes generate a scalar potential satisfying the de Sitte
r Conjecture.

Title:Regge ized scattering\, entanglement and chaos using AdS/CFT\n

ABSTRAC T:The eikonalized parton-parton scattering amplitude at large energy and < /pre>\nlarge impact parameter\, is dominated by the exchange of a hyp erbolic surface in\nwalled AdS. Its analytical continuation y ields a worldsheet instanton that is\nat the origin of the Reg geization of the amplitude and a thermal-like\nquantum entropy . I will construct the entangled density matrix following from the\nexchanged surface\, and show that its von-Neumann entanglement ent ropy\ncoincides with its thermal-like entropy. The ratio of t he entanglement entropy\nto the transverse growth of the excha nged surface is similar to the Bekenstein\nentropy ratio for a black-hole\, with a natural definition of saturation\nand th e on-set of chaos in high energy collisions. The largest eigenvalues \nof the entangled density matrix obey a cascade equation in rapid ity\,\nreminiscent of non-linear QCD evolution of wee-dipoles\nat low-x and weak coupling. We suggest that the largest eig envalues\ndescribe the probability distributions of wee-quant a at low-x\nand strong coupling that maybe measurable at prese nt and future hadron-hadron\nand lepton- hadron colliders.\n END:VEVENT BEGIN:VEVENT UID:4nq1jjjk2i3p5qm94c8adn9ahh@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Landau diagrams in AdS and S-matrices from conformal cor relators\nAbstract: Quantum field theories in AdS generate conformalcorrel ation functions on the boundary\, and in the limit where AdS is nearly fla t one should be able to extract an S-matrix from such correlators. We disc uss a particularly simple position-space procedure to do so. It features a direct map from boundary positionsto (on-shell) momenta and thereby relat es cross ratios to Mandelstam invariants. This recipe succeeds in several examples\, includes the momentum-conserving delta functions\, and can be s hown to imply the two proposals based on Mellin space and on the OPE data. Interestingly the procedure does not always work: the Landau singularities of a Feynman diagram are shown to be part of larger regions\, to be calle d `bad regions’\, where the flat-space limit of the Witten diagram diverge s. To capture these divergences we introducethe notion of Landau diagrams in AdS. As in flat space\, these describe on-shell particles propagating o ver large distances in a complexified space\, with a form of momentum cons ervation holding at each bulk vertex. As an application we recover the ano malousthreshold of the four-point triangle diagram at the boundary of a ba d region. DTSTART;TZID=Asia/Jerusalem:20201006T160000 DTEND;TZID=Asia/Jerusalem:20201006T170000 SEQUENCE:0 SUMMARY:Shota komatsu URL:https://phsites.technion.ac.il/strings/event/shota-komatsu/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Landau diagrams in AdS and S-matrices from conformal correlators

\nAbstrac t: Quantum field theories in AdS generate conformalcorrelation functions o n the boundary\, and in the limit where AdS is nearly flat one should be a ble to extract an S-matrix from such correlators. We discuss a particularl y simple position-space procedure to do so. It features a direct map from boundary positionsto (on-shell) momenta and thereby relates cross ratios t o Mandelstam invariants. This recipe succeeds in several examples\, includ es the momentum-conserving delta functions\, and can be shown to imply the two proposals based on Mellin space and on the OPE data.Interestingly the procedure does not always work: the Landau singularities of a Feynman dia gram are shown to be part of larger regions\, to be called `bad regions’\, where the flat-space limit of the Witten diagram diverges. To capture the se divergences we introducethe notion of Landau diagrams in AdS. As in fla t space\, these describe on-shell particles propagating over large distanc es in a complexified space\, with a form of momentum conservation holding at each bulk vertex. As an application we recover the anomalousthreshold o f the four-point triangle diagram at the boundary of a bad region.

\n END:VEVENT BEGIN:VEVENT UID:7dg17tuu7lqur4ffc8ihuvpi4i@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Boundary conditions for a free scalar field\nAbstract: \nIn the first part of the talk\, I will consider the problem of classifyi ng the conformal boundary conditions (b.c.) for the free scalar CFT. We wi ll see how to tackle this problem using conformal bootstrap techniques. In the case of 4d bulk\, I will show ournumerical results\, which feature a “kink” that indicates the existence of a non-trivial “interacting” b.c.\, besides the obvious Neumann and Dirichlet “free” b.c.’s.\nIn the second pa rt of the talk\, I will discuss the RG flow of a 4d free scalar field cou pled to large N vector models on the boundary. The (classically marginal) coupling involves the boundary mode of the scalar and the O(N) single-trac e scalar operator. Iwill explain that the resulting RG connects two fixed points with bulk and boundary decoupled\, and the local 3d sector is the f ree vector model in one end\, and the critical one in the other end. This same RG admits two weak-strong dual descriptions\, one fromthe free end\, and one from the critical end. DTSTART;TZID=Asia/Jerusalem:20201013T113000 DTEND;TZID=Asia/Jerusalem:20201013T123000 SEQUENCE:0 SUMMARY:Lorenzo di Pietro URL:https://phsites.technion.ac.il/strings/event/lorenzo-di-pietro-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Bound ary conditions for a free scalar field

\nAbstract:

\nIn the f irst part of the talk\, I will consider the problem of classifying the con formal boundary conditions (b.c.) for the free scalar CFT. We will see how to tackle this problem using conformal bootstrap techniques. In the case of 4d bulk\, I will show ournumerical results\, which feature a “kink” tha t indicates the existence of a non-trivial “interacting” b.c.\, besides th e obvious Neumann and Dirichlet “free” b.c.’s.

\nIn the second part of the talk\, I will discuss the RG flow of a 4d free scalar field couple d to large N vector models on the boundary. The (classically marginal) cou pling involves the boundary mode of the scalar and the O(N) single-trace s calar operator. Iwill explain that the resulting RG connects two fixed poi nts with bulk and boundary decoupled\, and the local 3d sector is the free vector model in one end\, and the critical one in the other end. This sam e RG admits two weak-strong dual descriptions\, one fromthe free end\, and one from the critical end.

\n END:VEVENT BEGIN:VEVENT UID:3se4418jbdb5e3chkq5g0h4ob5@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Quantum Extremal Islands Made Easy\nAbstract: We illustr ate the appearance of quantum extremal islands in holographic setups in hi gher dimensions. We emphasize the close parallel with the behaviour of hol ographic entanglement entropy in more familiar settings. DTSTART;TZID=Asia/Jerusalem:20201020T160000 DTEND;TZID=Asia/Jerusalem:20201020T170000 SEQUENCE:0 SUMMARY:Rob Myers URL:https://phsites.technion.ac.il/strings/event/rob-myers/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Qu antum Extremal Islands Made Easy\nAbstract: We illustrate the appea rance of quantum extremal islands in holographic setups in higher dimensio ns. We emphasize the close parallel with the behaviour of holographic enta nglement entropy in more familiar settings.

\n END:VEVENT BEGIN:VEVENT UID:ofdhc355fnqpcl47akdlouso98@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20201026T113000 DTEND;TZID=Asia/Jerusalem:20201026T123000 LOCATION:online (zoom) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Bin Wu\, Title: Deciphering the Inner Workings of the Quark-Gluon Plasma URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-bin-wu-title-deciphering-the-inner-workings-of-the-quark-gluon-plasma-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:4qlp7q9o9h4r8r9ufgqf6s6ngs@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title : Multi-point Bootstrap (and the search for a single open /closed string description of N=4 SYM) DTSTART;TZID=Asia/Jerusalem:20201027T160000 DTEND;TZID=Asia/Jerusalem:20201027T170000 SEQUENCE:0 SUMMARY:Pedro Vieira URL:https://phsites.technion.ac.il/strings/event/pedro-vieira/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title : Multi-point Bootstrap (and the search for a single open/clos ed string description of N=4 SYM)

\n END:VEVENT BEGIN:VEVENT UID:5p3dt4dukfl17kcr4aukfda788@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Flux-based statistical prediction of three-body outcomes \n\nAbstract: The three-body problem in Newtonian gravity is one of the ol dest and richest problems in physics. Giants worked on it and it served as the source of numerous fields in theoretical physics and mathematics incl uding perturbation theory\, topology and chaos. Yet\, it remains unsolved\ , and up to this work\, the associated statistical theory was incomplete a nd flawed. \nHere\, I present a reduction of the differential decay rate i n a factorized form. One factor is the flux of phase-space volume\, rather than the volume itself which was used in all previous works\, and it is g iven in a cutoff-independent closed-form. The other factor is related to t he chaotic absorptivity and to Kirchhoff’s law of thermal radiation\, also known as greybody radiation. Numerical evidence will be presented. I beli eve that this exact factorization cracks the problem and would allow futur e progress. Based on https://arxiv.org/abs/2002.11496 DTSTART;TZID=Asia/Jerusalem:20201103T160000 DTEND;TZID=Asia/Jerusalem:20201103T170000 SEQUENCE:0 SUMMARY:Barak Kol URL:https://phsites.technion.ac.il/strings/event/barak-kol-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Fl ux-based statistical prediction of three-body outcomes\n\nAbstract: The three-body problem in Newtonian gravity is one of the olde st and richest problems in physics. Giants worked on it and it served as t he source of numerous fields in theoretical physics and mathematics includ ing perturbation theory\, topology and chaos. Yet\, it remains unsolved\, and up to this work\, the associated statistical theory was incomplete and flawed. \nHere\, I present a reduction of the differential dec ay rate in a factorized form. One factor is the flux of phase-space volume \, rather than the volume itself which was used in all previous works\, an d it is given in a cutoff-independent closed-form. The other factor is rel ated to the chaotic absorptivity and to Kirchhoff’s law of thermal radiati on\, also known as greybody radiation. Numerical evidence will be presente d. I believe that this exact factorization cracks the problem and would al low future progress. Based on https://arxiv.org/abs/2002.11496< /a>\n END:VEVENT BEGIN:VEVENT UID:rt1jrj0rtis4d7plirqmi283v4@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20201109T113000 DTEND;TZID=Asia/Jerusalem:20201109T123000 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Roy Brener\, Title: Estimating the se nsitivity to new light resonances decaying to boosted quark pairs and prod uced in association with a photon in the ATLAS experiment URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-roy-brener-title-estimating-the-sensitivity-to-new-light-resonances-deca ying-to-boosted-quark-pairs-and-produced-in-association-with-a-photon-in-t he-atlas-experiment-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:6nvnhudfgkgeld3o7m5mu5uc0q@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: The Unreasonable Effectiveness of Higher-Derivative Supe rgravity in AdS_4 Holography\n\nAbstract: I will describe the four-derivat ive corrections to four-dimensional N=2 minimal gauged supergravity and sh ow that they are controlled by two constants. Interestingly\, the solution s of the equations of motion in the two-derivative theory are not modified by the higher-derivative corrections. I will use this to arrive at a gene ral formula for the regularized on-shell action for any asymptotically loc ally AdS_4 solution of the theory and show how the higher-derivative corre ctions affect black hole thermodynamic quantities in a universal way. I wi ll employ these results in the context of holography to derive new explici t results for the subleading corrections in the large N expansion of super symmetric partition functions on various compact manifolds for a large cla ss of three-dimensional SCFTs arising from M2- and M5-branes. I will also briefly discuss possible extensions and generalizations of these results. DTSTART;TZID=Asia/Jerusalem:20201110T160000 DTEND;TZID=Asia/Jerusalem:20201110T170000 SEQUENCE:0 SUMMARY:Nikolay Bobev URL:https://phsites.technion.ac.il/strings/event/nikolay-bobev/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: The Unreasonable Effectiveness of Higher- Derivative Supergravity in AdS_4 Holography

\n\nAbstract: I will describe the four-derivative corrections to four-dimensional N=2 m inimal gauged supergravity and show that they are controlled by two consta nts. Interestingly\, the solutions of the equations of motion in the two-d erivative theory are not modified by the higher-derivative corrections. I will use this to arrive at a general formula for the regularized on-shell action for any asymptotically locally AdS_4 solution of the theory and sho w how the higher-derivative corrections affect black hole thermodynamic qu antities in a universal way. I will employ these results in the context of holography to derive new explicit results for the subleading corrections in the large N expansion of supersymmetric partition functions on various compact manifolds for a large class of three-dimensional SCFTs arising fro m M2- and M5-branes. I will also briefly discuss possible extensions and g eneralizations of these results.

\n END:VEVENT BEGIN:VEVENT UID:09sgiso2nhu4fujvhu54j487hs@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Bar’s journal club\nTime: Nov 15\, 2020 02:30 PM Jerusalem\nJo in Zoom Meeting\nhttps://technion.zoom.us/j/99099738727\nMeeting ID: 990 9 973 8727\nOne tap mobile\n+972553301762\,\,99099738727# Israel\n+972397866 88\,\,99099738727# Israel\nDial by your location\n +972 55 330 1762 Israel\n +972 3 978 6688 Israel\nMeeting ID: 990 9973 8727\nFind y our local number: https://technion.zoom.us/u/aeDHxVQalR DTSTART;TZID=Asia/Jerusalem:20201115T143000 DTEND;TZID=Asia/Jerusalem:20201115T153000 SEQUENCE:0 SUMMARY:Bar’s journal club URL:https://phsites.technion.ac.il/strings/event/bars-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Bar’s journal club

\n

\nTime: Nov 15\, 2020 02:30 PM JerusalemJoin Z oom Meeting

\n

\nhttps://technion.zoom.us/j/99099738727Meeting ID: 990 9973 8727

\n

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\n END:VEVENT BEGIN:VEVENT UID:5qp9opsepki5kmkdul47badse3@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Fine probes of quantum chaosAbstract: Quantum chaotic dy namics is associated to diverse physical phenomena and signatures. In this talk\, we describe progress in building effective theories for three of t hese: the butterfly effect\, the pole skipping phenomenon\, and thermaliza tion through the lens of entanglement entropy. We uncover their interplay by showing that the butterfly velocity plays an important role in all thre e manifestations of chaos. The discussion is informed by results from AdS/ CFT and from models of SYK type. DTSTART;TZID=Asia/Jerusalem:20201117T160000 DTEND;TZID=Asia/Jerusalem:20201117T170000 SEQUENCE:0 SUMMARY:Mark Mezei URL:https://phsites.technion.ac.il/strings/event/mark-mezei/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 55 330 1762 Israel

\n +972 3 978 6688 Israel

\nMeeting ID: 990 9973 8727

\nFind your local number : https://technion.zoom.us/u/aeDHxVQalR\\n\\n Title: Fine probes of quantum chaos

\n END:VEVENT BEGIN:VEVENT UID:5p301f93nik5okete4a8pp5n1r@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Anton’s talk\nTime: Nov 22\, 2020 02:30 PM Jerusalem\nJoin Zoo m Meeting\nhttps://technion.zoom.us/j/96411533871\nMeeting ID: 964 1153 38 71\nOne tap mobile\n+972553301762\,\,96411533871# Israel\n+97239786688\,\, 96411533871# Israel\nDial by your location\n +972 55 330 1762 Israe l\n +972 3 978 6688 Israel\nMeeting ID: 964 1153 3871\nFind your lo cal number: https://technion.zoom.us/u/aggbKmz7h DTSTART;TZID=Asia/Jerusalem:20201122T143000 DTEND;TZID=Asia/Jerusalem:20201122T153000 SEQUENCE:0 SUMMARY:Anton’s journal club URL:https://phsites.technion.ac.il/strings/event/antons-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

< br style='font-family: Calibri\, Helvetica\, sans-serif\, serif\, EmojiFon t\;font-size: 16px'>Abstract: Quantum chaotic dynam ics is associated to diverse physical phenomena and signatures. In this ta lk\, we describe progress in building effective theories for three of thes e: the butterfly effect\, the pole skipping phenomenon\, and thermalizatio n through the lens of entanglement entropy. We uncover their interplay by showing that the butterfly velocity plays an important role in all three m anifestations of chaos. The discussion is informed by results from AdS/CFT and from models of SYK type.\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Anton ’s talk

\n

\nTime: Nov 22\, 2020 02:30 PM JerusalemJoin Zoom Me eting

\n

\nhttps://technion.zoom.us/j/96411533871Meeting ID: 96 4 1153 3871

\n

\nOne tap mobile

\n+972553301762\,\,96411533871# Isr ael

\n+97239786688\,\,96411533871# IsraelDial by your locati on

\n END:VEVENT BEGIN:VEVENT UID:7ot4id2eam1jl906b0nr4ikumg@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Gravity from Averaging CFTs\nAbstract: I will explore th e idea that certain theories of gravity in Anti-de\nSitter space are dual to an average over an ensemble of quantum\ntheories\, rather than to a spe cific quantum theory. I will describe\nan average over Narain’s family of two-dimensional conformal field\ntheories which describe free bosons on a torus\, and compute the\npartition function using the Siegel-Weil formula . The result takes\nthe form of a sum over geometries as one would expect in a theory of\ngravity. But the gravitational theory looks more like a Chern-Simons\ntheory than like Einstein gravity. DTSTART;TZID=Asia/Jerusalem:20201124T160000 DTEND;TZID=Asia/Jerusalem:20201124T170000 SEQUENCE:0 SUMMARY:Alex Maloney URL:https://phsites.technion.ac.il/strings/event/alex-maloney/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 55 330 1762 Israel

\n +972 3 978 6688 I srael

\nMeeting ID: 964 1153 3871

\nFind your local number: http s://technion.zoom.us/u/aggbKmz7h\\n\\n Title: Gravit y from Averaging CFTs

\nAbstract: I will explore the idea that certa in theories of gravity in Anti-de

\n END:VEVENT BEGIN:VEVENT UID:3sjtjsmde1abju7t9g4lc0b43v@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Sebastian’s journal club talk\nTime: Nov 29\, 2020 02:30 PM Je rusalem\nJoin Zoom Meeting\nhttps://technion.zoom.us/j/93922529082\nMeetin g ID: 939 2252 9082\nOne tap mobile\n+97239786688\,\,93922529082# Israel\n +972553301762\,\,93922529082# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel\nMeeting ID: 939 2252 9 082\nFind your local number: https://technion.zoom.us/u/aZYLQpUdS DTSTART;TZID=Asia/Jerusalem:20201129T143000 DTEND;TZID=Asia/Jerusalem:20201129T153000 SEQUENCE:0 SUMMARY:Sebastian’s journal club URL:https://phsites.technion.ac.il/strings/event/sebastians-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nSitter space are dual to an avera ge over an ensemble of quantum

\ntheories\, rather than to a specific quantum theory. I will describe

\nan average over Narain’s family o f two-dimensional conformal field

\ntheories which describe free boso ns on a torus\, and compute the

\npartition function using the Siegel -Weil formula. The result takes

\nthe form of a sum over geometries as one would expect in a theory of

\ngravity. But the gravitational theory looks more like a Chern-Simons

\ntheory than like Einstein gra vity.\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Sebas tian’s journal club talk

\n

\nTime: Nov 29\, 2020 02:30 PM JerusalemJoin Zoom Meeting

\n

\nhttps://technion.zoom.us/j/93922529082Meeting ID: 939 2252 9082

\n

\nOne tap mobile

\n+97239786688\,\, 93922529082# Israel

\n+972553301762\,\,93922529082# IsraelDi al by your location

\n END:VEVENT BEGIN:VEVENT UID:3co88s94vtqoadlucpmmc43irj@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Global symmetry\, Euclidean gravity\, and the black hole information problem\nAbstract: In this talk I will show how the essential ingredients of recent calculations of the Page curve of an evaporating bl ack hole can be usedto generalize a recent argument against global symmetr ies beyond the AdS/CFT correspondence to more realistic theories of quantu m gravity\, illustrating a close connection between the absence of global symmetries and a unitary resolution of the black hole informationproblem. I’ll also give several low-dimensional examples of quantum gravity theorie s which do not have a unitary resolution of the black hole information pro blem\, and which therefore can and do have global symmetries. Motivated by this discussion\, I’ll conjecturethat in a certain sense Euclidean quantu m gravity is equivalent to holography. Based on recent work with Edgar Sh aghoulian. DTSTART;TZID=Asia/Jerusalem:20201201T160000 DTEND;TZID=Asia/Jerusalem:20201201T170000 SEQUENCE:0 SUMMARY:Daniel Harlow URL:https://phsites.technion.ac.il/strings/event/daniel-harlow/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 3 978 6688 Israel

\n + 972 55 330 1762 Israel

\nMeeting ID: 939 2252 9082

\nFind your l ocal number: https://technion.zoom.us/u/aZYLQpUdS\\n\\n \n

Title: Global symmetry\, Euclidean gravity\, and th e black hole information problemAbstract: In this talk I will show how the esse ntial ingredients of recent calculations of the Page curve of an evaporati ng black hole can be usedto generalize a recent argument against global sy mmetries beyond the AdS/CFT correspondence to more realistic theories of q uantum gravity\, illustrating a close connection between the absence of gl obal symmetries and a unitary resolution of the black hole informationprob lem. I’ll also give several low-dimensional examples of quantum gravity th eories which do not have a unitary resolution of the black hole informatio n problem\, and which therefore can and do have global symmetries. Motivat ed by this discussion\, I’ll conjecturethat in a certain sense Euclidean q uantum gravity is equivalent to holography. Based on recent work with Edg ar Shaghoulian.

\n END:VEVENT BEGIN:VEVENT UID:1e6qqnejoo43mp4hsq6oqti9k5@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Paolo’s talk\nTime: Dec 6\, 2020 02:30 PM Jerusalem\nJoin Zoom Meeting\nhttps://technion.zoom.us/j/96588524118\nMeeting ID: 965 8852 411 8\nOne tap mobile\n+97239786688\,\,96588524118# Israel\n+972553301762\,\,9 6588524118# Israel\nDial by your location\n +972 3 978 6688 Israel \n +972 55 330 1762 Israel\nMeeting ID: 965 8852 4118\nFind your lo cal number: https://technion.zoom.us/u/adtIpI2DKL DTSTART;TZID=Asia/Jerusalem:20201206T143000 DTEND;TZID=Asia/Jerusalem:20201206T153000 SEQUENCE:0 SUMMARY:Paolo’s talk URL:https://phsites.technion.ac.il/strings/event/paolos-talk/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Paolo ’s talk

\n

\nTime: Dec 6\, 2020 02:30 PM JerusalemJoin Zoom Mee ting

\n

\nhttps://technion.zoom.us/j/96588524118Meeting ID: 965 8852 4118

\n

\nOne tap mobile

\n+97239786688\,\,96588524118# Israe l

\n+972553301762\,\,96588524118# IsraelDial by your locatio n

\n END:VEVENT BEGIN:VEVENT UID:0oaogqg6bigrghidoo7djtrofv@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: The Statistical Mechanics of Near-BPS Black Holes\n\nAbs tract: The status of near extremal black holes in gravity and string theor y has long remained unclear due to the failure of black hole thermodynamic s at low temperatures. Such black holes have an AdS2 region\, and substant ial progress in the last few years has been made on Jackiw-Teitelboim (JT) dilaton gravity\, which is an effective theory of nearly AdS2 spacetimes dual to a 1D “Schwarzian” theory. \n\nIn this talk\, we will derive and s olve an effective theory to describe 4D flat space black holes which are j ust above the BPS bound. This theory is an N=4 supersymmetric version of t he 2D Jackiw-Teitelboim gravity 1D Schwarzian correspondence which we wil l obtain from nearly AdS2xS2 black holes in 4D N=2 supergravity. Using the Schwarzian description of these low temperature black holes\, we can comp ute the partition function and density of states exactly. Our results veri fy several conjectures about near-BPS black holes coming from string theor y\, including an exact extremal degeneracy agreeing with Bekenstein-Hawkin g and a thermodynamic mass gap between extremal and near-extremal black ho les.\n\nBased on a recent paper (https://arxiv.org/abs/2011.01953) with MT H\, Luca Iliesiu\, Gustavo Turiaci\, and Wenli Zhao. DTSTART;TZID=Asia/Jerusalem:20201208T160000 DTEND;TZID=Asia/Jerusalem:20201208T170000 SEQUENCE:0 SUMMARY:Matthew Heydeman URL:https://phsites.technion.ac.il/strings/event/tba/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 3 978 6688 Israel

\n +972 55 330 1762 Is rael

\nMeeting ID: 965 8852 4118

\nFind your local number: https ://technion.zoom.us/u/adtIpI2DKL\\n\\n Title: Th e Statistical Mechanics of Near-BPS Black Holes\n\nAbstr act: The status of near extremal black holes in gravity and string theory has long remained unclear due to the failure of black hole thermodynamics at low temperatures. Such black holes have an AdS2 region\, and substantia l progress in the last few years has been made on Jackiw-Teitelboim (JT) d ilaton gravity\, which is an effective theory of nearly AdS2 spacetimes du al to a 1D “Schwarzian” theory. \n\nIn this talk\, we will derive and solve an effective theory to describe 4D flat space black holes which are just above the BPS bound. This theory is an N=4 supersymmetric version of the 2D Jackiw-Teitelboim gravity <-> 1D Schwarzian corresponden ce which we will obtain from nearly AdS2xS2 black holes in 4D N=2 supergra vity. Using the Schwarzian description of these low temperature black hole s\, we can compute the partition function and density of states exactly. O ur results verify several conjectures about near-BPS black holes coming fr om string theory\, including an exact extremal degeneracy agreeing with Be kenstein-Hawking and a thermodynamic mass gap between extremal and near-ex tremal black holes.

\n\nBased on a recent paper (https://arxiv.org/abs/2011.01953) with MTH\, Luca Iliesiu\, Gustavo Turiaci\, and Wenli Zhao. \n END:VEVENT BEGIN:VEVENT UID:6eb4m4cq41v726en27m1iq0f49@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20201215T160000 DTEND;TZID=Asia/Jerusalem:20201215T170000 SEQUENCE:0 SUMMARY:Hanukah – no seminar URL:https://phsites.technion.ac.il/strings/event/hanukah-no-seminar/ END:VEVENT BEGIN:VEVENT UID:58avs1pm4kc6rgcoquvkrtbqjr@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Photon Ring Autocorrelations\n\nAbstract: In the presenc e of a black hole\, light sources connect to observers along multiple path s. As a result\, observed brightness fluctuations must be correlated acros s different times and positions in black hole images. Photons that execute multiple orbits around the black hole appear near a critical curve in the observer sky\, giving rise to the photon ring. In the talk I will describ e the structure of a Kerr black hole’s photon ring. I will then discuss a novel observable we have recently proposed: the two-point correlation func tion of intensity fluctuations on the ring. I will describe its analytic c omputation within a toy model of stochastic emission\, and show that it ex hibits a universal\, self-similar pattern consisting of multiple peaks of identical shape: while the profile of each peak encodes statistical proper ties of fluctuations in the source\, the locations and heights of the peak s are determined purely by the black hole parameters. Measuring these peak s would demonstrate the existence of the photon ring without resolving its thickness\, and would provide estimates of black hole mass and spin. I wi ll discuss some prospective extensions and generalizations\, and argue tha t with regular monitoring over sufficiently long timescales\, this measure ment could be possible via interferometric imaging with modest improvement s to the Event Horizon Telescope. DTSTART;TZID=Asia/Jerusalem:20201222T160000 DTEND;TZID=Asia/Jerusalem:20201222T170000 SEQUENCE:0 SUMMARY:Shahar Hadar URL:https://phsites.technion.ac.il/strings/event/shahar-hadar/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title:Photon Ring Autocorrelations\n

\nAbstract~~: In the p resence of a black hole\, light sources connect to observers along multipl e paths. As a result\, observed brightness fluctuations must be correlated across different times and positions in black hole images. Photons that e xecute multiple orbits around the black hole appear near a critical curve in the observer sky\, giving rise to the photon ring. In the talk I will d escribe the structure of a Kerr black hole’s photon ring. I will then disc uss a novel observable we have recently proposed: the two-point correlatio n function of intensity fluctuations on the ring. I will describe its anal ytic computation within a toy model of stochastic emission\, and show that it exhibits a universal\, self-similar pattern consisting of multiple peak s of identical shape: while the profile of each peak encodes statistical p roperties of fluctuations in the source\, the locations and heights of the peaks are determined purely by the black hole parameters. Measuring these peaks would demonstrate the existence of the photon ring without resolvin g its thickness\, and would provide estimates of black hole mass and spin. I will discuss some prospective extensions and generalizations\, and argu e that with regular monitoring over sufficiently long timescales\, this mea surement could be possible via interferometric imaging with modest improve ments to the Event Horizon Telescope.~~\n END:VEVENT BEGIN:VEVENT UID:kp3vjp55mipf96ktojic984p30@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT:mailto:milan.paolo90@gmail.com DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nJoin Zoom Meeting\nhttps://technion.zoom.us/j/95507640967\nMeeting ID : 955 0764 0967\nOne tap mobile\n+972553301762\,\,95507640967# Israel\n+97 239786688\,\,95507640967# Israel\nDial by your location\n +972 55 3 30 1762 Israel\n +972 3 978 6688 Israel\nMeeting ID: 955 0764 0967 \nFind your local number: https://technion.zoom.us/u/ad23egj816 DTSTART;TZID=Asia/Jerusalem:20201227T143000 DTEND;TZID=Asia/Jerusalem:20201227T160000 LOCATION:https://technion.zoom.us/j/95507640967 SEQUENCE:0 SUMMARY:Assaf’s journal club talk URL:https://phsites.technion.ac.il/strings/event/assafs-journal-club-talk/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

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\n END:VEVENT BEGIN:VEVENT UID:01ofv8ulgsjmkvp95b6v5uf0p9@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Thermal order in large N conformal gauge theoriesAbstrac t: Our experience with many physical systems tells us that usually when a symmetry is spontaneously broken at low temperatures\, it is restored upon increasing the temperature sufficiently. The abundance of such systems r aises the question of whether this is a universal feature of all quantum s ystems. In this talk\, I will present examples of (3+1)-dimensional non-su persymmetric large N gauge theories which demonstrate violations of the ab ove feature. I will argue that in the N tending to infinity limit\, these theories have conformal manifolds which survive under all loop corrections to the beta functions of the couplings. I will show that under certain co nditions\, a subset of points on such a conformal manifold demonstrates th e spontaneous breaking of a global symmetry at all nonzero temperatures. F urthermore\, I will demonstrate that this symmetry breaking is accompanied by the Higgsing of a subset of gauge bosons leading the system to be in a persistent Brout-Englert-Higgs phase. DTSTART;TZID=Asia/Jerusalem:20201229T160000 DTEND;TZID=Asia/Jerusalem:20201229T170000 SEQUENCE:0 SUMMARY:Soumyadeep Chaudhuri URL:https://phsites.technion.ac.il/strings/event/soumyadeep-chaudhuri/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 55 330 1762 Israel

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\nMeeting ID: 955 0764 0967

\nFind your local number: http s://technion.zoom.us/u/ad23egj816\\n\\n Title : Thermal order in large N conformal gauge theories

\n END:VEVENT BEGIN:VEVENT UID:b5men841s0v1ufkbpmsn9t23fc@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nJoin Zoom Meeting\nhttps://technion.zoom.us/j/93982508036\nMeeting ID : 939 8250 8036\nOne tap mobile\n+97239786688\,\,93982508036# Israel\n+972 553301762\,\,93982508036# Israel\nDial by your location\n +972 3 97 8 6688 Israel\n +972 55 330 1762 Israel\nMeeting ID: 939 8250 8036 \nFind your local number: https://technion.zoom.us/u/amf2JHgqX DTSTART;TZID=Asia/Jerusalem:20210103T143000 DTEND;TZID=Asia/Jerusalem:20210103T160000 LOCATION:https://technion.zoom.us/j/93982508036 SEQUENCE:0 SUMMARY:Belal’s journal club talk URL:https://phsites.technion.ac.il/strings/event/belals-journal-club-talk/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\nAbstract: Our experience with many physical systems tells us that usua lly when a symmetry is spontaneously broken at low temperatures\, it is re stored upon increasing the temperature sufficiently. The abundance of suc h systems raises the question of whether this is a universal feature of al l quantum systems. In this talk\, I will present examples of (3+1)-dimensi onal non-supersymmetric large N gauge theories which demonstrate violation s of the above feature. I will argue that in the N tending to infinity lim it\, these theories have conformal manifolds which survive under all loop corrections to the beta functions of the couplings. I will show that under certain conditions\, a subset of points on such a conformal manifold demo nstrates the spontaneous breaking of a global symmetry at all nonzero temp eratures. Furthermore\, I will demonstrate that this symmetry breaking is accompanied by the Higgsing of a subset of gauge bosons leading the system to be in a persistent Brout-Englert-Higgs phase. \\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

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\nhttps://technion.zoom.us/j/93982508036Meeting ID: 93 9 8250 8036

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\n END:VEVENT BEGIN:VEVENT UID:2qk6uj03ncc8oesphcr9dvj2cn@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Comments on holographic description of Narain theories.A bstract: I will discuss to what extent holographic description ofNarain th eories can mimic the conventional picture of large cholography with weakly coupled gravity in the bulk. Namely is itpossible that the effective IR b ulk theory consist of “$U(1)$gravity” amended with some additional states. This picture leads to ahypothesis that in the large central charge limit density of states ofany Narain theory would be bounded by below by that on e of “$U(1)$gravity.” This immediately implies maximal value of spectral g ap ofprimary fields is $Delta_1=c/(2pi e)$. In the rest of the talk Iwill discuss self-consistency of this picture using quantum code andchiral CFTs . First\, I will show the proposed picture yields a newbound on quantum st abilizer codes\, which is compatible with previouslyknown bounds in the li terature. Next\, I will discuss variance of thedensity of states\, which f or consistency\, must be vanishingly small inthe large $c$ limit. I will c onsider ensembles of code and chiral DTSTART;TZID=Asia/Jerusalem:20210105T160000 DTEND;TZID=Asia/Jerusalem:20210105T170000 SEQUENCE:0 SUMMARY:Anatoly Dymarsky URL:https://phsites.technion.ac.il/strings/event/anatoly-dymarsky-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 3 978 6688 Israel

\n +972 55 330 1762 I srael

\nMeeting ID: 939 8250 8036

\nFind your local number: http s://technion.zoom.us/u/amf2JHgqX\\n\\n Title: Comments on h olographic description of Narain theories.

Abstract: I will discuss to what extent holographi c description of

Narain theories can mimic the conventional picture of large c

holography with weakly coupled gravity in the bulk. Namely is it

possible that the effective IR bul k theory consist of “$U(1)$

gravity” amended with some additional states. This pictu re leads to a

hypothesis that in the large central charge limit density of states of~~any Narai n theory would be bounded by below by that one of “$U(1)$~~

gravity.” This immediately implies maximal value of spectral gap of

primary fields is $Delta_1=c/(2pi e)$. In the rest of the talk I

will discuss self-consistency of this picture using quantum c ode and

ch iral CFTs. First\, I will show the proposed picture yields a new

bound on quantum st abilizer codes\, which is compatible with previously

known bounds in the literature. Next\, I will discuss variance of the

density of states\, which for consistency\, m ust be vanishingly small in

the large $c$ limit. I will consider ensembles of code a nd chiral

\n END:VEVENT BEGIN:VEVENT UID:6e2d2odlugrrcajrgll6kpi868@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nJoin Zoom Meeting\nhttps://technion.zoom.us/j/99660586760\nMeeting ID : 996 6058 6760\nOne tap mobile\n+97239786688\,\,99660586760# Israel\n+972 553301762\,\,99660586760# Israel\nDial by your location\n +972 3 97 8 6688 Israel\n +972 55 330 1762 Israel\nMeeting ID: 996 6058 6760 \nFind your local number: https://technion.zoom.us/u/adEFoxrg2v DTSTART;TZID=Asia/Jerusalem:20210110T143000 DTEND;TZID=Asia/Jerusalem:20210110T153000 LOCATION:https://technion.zoom.us/j/99660586760 SEQUENCE:0 SUMMARY:Dean’s journal club talk URL:https://phsites.technion.ac.il/strings/event/deans-journal-club-talk/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n

~~ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.~~~~\n~~Join Zoom Me eting

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\nhttps://technion.zoom.us/j/99660586760Meeting ID: 99 6 6058 6760

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\n END:VEVENT BEGIN:VEVENT UID:1fh61lkvve0kuvd0e9lqg45c72@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Twistors\, Integrability and 4d Chern-Simons Theory\n\nA bstract: It has long been known that many classical integrable systems can be obtained as symmetry reductions of the anti-self-dual Yang-Mills equat ions. Following a suggestion of Costello\, I’ll show that actions for asd YM arise from holomorphic Chern-Simons theory on twistor space\, defined w ith the help of a choice of meromorphic (3\,0)-form. Applying the symmetry reduction in twistor space\, one instead arrives at the description of th e integrable system in terms of 4d Chern-Simons theory of Costello & Yamaz aki. DTSTART;TZID=Asia/Jerusalem:20210112T160000 DTEND;TZID=Asia/Jerusalem:20210112T170000 SEQUENCE:0 SUMMARY:David Skinner URL:https://phsites.technion.ac.il/strings/event/david-skinner/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

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\nMeeting ID: 996 6058 6760

\nFind your local number: http s://technion.zoom.us/u/adEFoxrg2v\\n\\n Title: Twistors\, In tegrability and 4d Chern-Simons Theory\n

\nAbstract: It has lo ng been known that many classical integrable systems can be obtained as sy mmetry reductions of the anti-self-dual Yang-Mills equations. Following a suggestion of Costello\, I’ll show that actions for asd YM arise from holo morphic Chern-Simons theory on twistor space\, defined with the help of a choice of meromorphic (3\,0)-form. Applying the symmetry reduction in twis tor space\, one instead arrives at the description of the integrable syste m in terms of 4d Chern-Simons theory of Costello & Yamazaki.\n< /HTML> END:VEVENT BEGIN:VEVENT UID:khdqckmvihhfk6fhk7nbfeuiso@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nJoin Zoom Meeting\nhttps://technion.zoom.us/j/93584505801\nMeeting ID : 935 8450 5801\nOne tap mobile\n+972553301762\,\,93584505801# Israel\n+97 239786688\,\,93584505801# Israel\nDial by your location\n +972 55 3 30 1762 Israel\n +972 3 978 6688 Israel\nMeeting ID: 935 8450 5801 \nFind your local number: https://technion.zoom.us/u/aj7DGg2UG DTSTART;TZID=Asia/Jerusalem:20210117T143000 DTEND;TZID=Asia/Jerusalem:20210117T160000 LOCATION:https://technion.zoom.us/j/93584505801 SEQUENCE:0 SUMMARY:Orr’s journal club talk URL:https://phsites.technion.ac.il/strings/event/orrs-journal-club-talk/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

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\nhttps://technion.zoom.us/j/93584505801Meeting ID: 93 5 8450 5801

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\n END:VEVENT BEGIN:VEVENT UID:3ckfg9f9bu48o2d1r2g1vo7k3k@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Frontiers in Positive Geometry.\nAbstract: In this talk I will describe work in progress connecting scattering amplitudes to ampli tuhedra and positive geometries in kinematic space. For N=4 SYM in the pla nar limit\, I will show how the geometry of the amplituhedron naturally p rovides a new approach to non-perturbative physics. I will also describe c onjectural all-loop order\, non-planar\, non-supersymmetric amplituhedra for the tr(phi^3) theory–which are new (generally infinite) polytopes atta ched to any Riemann surface–and show how the connection to positive geomet ry forces the existence of “gravity” in this setting. DTSTART;TZID=Asia/Jerusalem:20210119T160000 DTEND;TZID=Asia/Jerusalem:20210119T170000 SEQUENCE:0 SUMMARY:Nima Arkani-Hamed URL:https://phsites.technion.ac.il/strings/event/nima-arkani-hamed/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 55 330 1762 Israel

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\nMeeting ID: 935 8450 5801

\nFind your local number: http s://technion.zoom.us/u/aj7DGg2UG\\n\\n Title: Fronti ers in Positive Geometry.

\nAbstract: In this talk I will describe w ork in progress connecting scattering amplitudes to amplituhedra and posit ive geometries in kinematic space. For N=4 SYM in the planar limit\, I wil l show how the geometry of the amplituhedron naturally provides a new app roach to non-perturbative physics. I will also describe conjectural all-lo op order\, non-planar\, non-supersymmetric amplituhedra for the tr(phi^3) theory–which are new (generally infinite) polytopes attached to any Riema nn surface–and show how the connection to positive geometry forces the exi stence of “gravity” in this setting.

\n END:VEVENT BEGIN:VEVENT UID:4i7ckucqcb4cd2ko6714hj7b28@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nJoin Zoom Meeting\nhttps://technion.zoom.us/j/91205843934\nMeeting ID : 912 0584 3934\nOne tap mobile\n+97239786688\,\,91205843934# Israel\n+972 553301762\,\,91205843934# Israel\nDial by your location\n +972 3 97 8 6688 Israel\n +972 55 330 1762 Israel\nMeeting ID: 912 0584 3934 \nFind your local number: https://technion.zoom.us/u/acTGBZmez4 DTSTART;TZID=Asia/Jerusalem:20210124T143000 DTEND;TZID=Asia/Jerusalem:20210124T153000 LOCATION:https://technion.zoom.us/j/91205843934 SEQUENCE:0 SUMMARY:Evyatar’s journal club talk URL:https://phsites.technion.ac.il/strings/event/evyatars-journal-club-talk / X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

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\n END:VEVENT BEGIN:VEVENT UID:27v2ufeapa5gqrbp7dpprvt0o9@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Using Soft Hair to Dissolve the Firewall\nAbstract: We b uild on the observation by Hawking\, Perry and Strominger that a global bl ack hole space-time supports a large number of soft hair degrees of freedo m to shed new light on the firewall argument by Almheiri\, Marolf\, Polchi nski\, and Sully. The soft hair carries a sizable amount of entropy and is encoded in a transition function that connects the asymptotic and near ho rizon regions. We argue that an infalling observer automatically measures the classical value of the soft mode before reachingthe horizon and that this measurement implements a code subspace projection that enables the re construction of interior operators. We use the soft hair dynamics to intr oduce an observer dependent notion of the firewall and show that an infall ing observer neverencounters a firewall before reaching the singularity. DTSTART;TZID=Asia/Jerusalem:20210126T160000 DTEND;TZID=Asia/Jerusalem:20210126T170000 SEQUENCE:0 SUMMARY:Sabrina Pasterski URL:https://phsites.technion.ac.il/strings/event/sabrina-pasterski/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 3 978 6688 Israel

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\nMeeting ID: 912 0584 3934

\nFind your local number: http s://technion.zoom.us/u/acTGBZmez4\\n\\n Title: Using Soft Hair to Dissolve the Firewall

\nAbstract: We build on the obser vation by Hawking\, Perry and Strominger that a global black hole space-ti me supports a large number of soft hair degrees of freedom to shed new lig ht on the firewall argument by Almheiri\, Marolf\, Polchinski\, and Sully. The soft hair carries a sizable amount of entropy and is encoded in a tra nsition function that connects the asymptotic and near horizon regions. W e argue that an infalling observer automatically measures the classical va lue of the soft mode before reachingthe horizon and that this measurement implements a code subspace projection that enables the reconstruction of i nterior operators. We use the soft hair dynamics to introduce an observer dependent notion of the firewall and show that an infalling observer neve rencounters a firewall before reaching the singularity.

\n END:VEVENT BEGIN:VEVENT UID:08b1afn067f5dfgs628qhd7ipm@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION: DTSTART;TZID=Asia/Jerusalem:20210202T093000 DTEND;TZID=Asia/Jerusalem:20210202T103000 SEQUENCE:0 SUMMARY:No seminars in February – semester break URL:https://phsites.technion.ac.il/strings/event/no-seminars-in-february-se mester-break/ END:VEVENT BEGIN:VEVENT UID:371eeh569c8h4j0ftf9pi9nvg4@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Detecting chaos in hydrodynamics \nAbstract: Hydrodynami cs assumes local equilibration and equilibration assumes ergodic mixing dr iven by chaos — at least in semi-classical systems. For a generic such sys tem the timescales of macroscopic thermalization and onset of microscopic chaos are very different. Nevertheless\, it is a pillar of Boltzmann trans port that long-time equilibration can be computed from microscopic dynamic s. We show how in these systems the two timescales are in fact related. Mo reover\, we show that a similar connection between both scales surprisingl y also exists in extremely strongly coupled systems through a phenomenon c hristened pole-skipping in hydrodynamic response. DTSTART;TZID=Asia/Jerusalem:20210302T160000 DTEND;TZID=Asia/Jerusalem:20210302T170000 SEQUENCE:0 SUMMARY:Koenraad Schalm URL:https://phsites.technion.ac.il/strings/event/koenraad-schalm/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Detect ing chaos in hydrodynamics

\nAbstract: Hydrodynamics assumes local equilibration and equilibration assumes ergodic mixing driven by chaos — a t least in semi-classical systems. For a generic such system the timescale s of macroscopic thermalization and onset of microscopic chaos are very di fferent. Nevertheless\, it is a pillar of Boltzmann transport that long-ti me equilibration can be computed from microscopic dynamics. We show how in these systems the two timescales are in fact related. Moreover\, we show that a similar connection between both scales surprisingly also exists in extremely strongly coupled systems through a phenomenon christened pole-sk ipping in hydrodynamic response.

\n END:VEVENT BEGIN:VEVENT UID:3udiq1p52gpo5opri53ogth979@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: A CFT Distance Conjecture\nAbs: We formulate conjectures relating the geometry of conformal manifolds to the spectrum of local ope rators in conformal field theories in d>2 spacetime dimensions. We focus o n conformal manifolds with limiting points at infinite distance with respe ct tothe Zamolodchikov metric. Our central conjecture is that all theories at infinite distance possess an emergent higher-spin symmetry\, generated by an infinite tower of currents whose anomalous dimensions vanish expone ntially in the distance. Our conjecturesare related to the Distance Conjec ture in the swampland program. We discuss the supporting evidence\, their holographic interpretation\, and implications for superconformal field the ories. DTSTART;TZID=Asia/Jerusalem:20210309T160000 DTEND;TZID=Asia/Jerusalem:20210309T170000 SEQUENCE:0 SUMMARY:Eric Perlmutter URL:https://phsites.technion.ac.il/strings/event/eric-perlmutter/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: A CFT Distance Conjecture

\nAbs: We formulate conjectures relating the ge ometry of conformal manifolds to the spectrum of local operators in confor mal field theories in d>2 spacetime dimensions. We focus on conformal mani folds with limiting points at infinite distance with respect tothe Zamolod chikov metric. Our central conjecture is that all theories at infinite dis tance possess an emergent higher-spin symmetry\, generated by an infinite tower of currents whose anomalous dimensions vanish exponentially in the d istance. Our conjecturesare related to the Distance Conjecture in the swam pland program. We discuss the supporting evidence\, their holographic inte rpretation\, and implications for superconformal field theories.

\n END:VEVENT BEGIN:VEVENT UID:1rm2m51f17ek51his6qa45a9p1@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Replica wormhole\, Page curve\, global symmetry and remn ant\nAbstract:\nA central dogma in the current theoretical study of black holes is that they can be viewed as an ordinary quantum system with large degrees of freedom. In the talk I will argue that replica wormhole gives s trong evidence to the central dogma\, including deriving the Page curve of the Hawking radiation\, and an explicit construction of a complete basis of the black hole interior states. We will also comment on its relation wi th violation of global symmetry in quantum gravity. DTSTART;TZID=Asia/Jerusalem:20210316T160000 DTEND;TZID=Asia/Jerusalem:20210316T170000 SEQUENCE:0 SUMMARY:Zhenbin Yang URL:https://phsites.technion.ac.il/strings/event/zhenbin-yang/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Replic a wormhole\, Page curve\, global symmetry and remnant

\nAbstract:

\n END:VEVENT BEGIN:VEVENT UID:01vkjlq9bhh7jnikilkn8trtfg@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20210322T090000 DTEND;TZID=Asia/Jerusalem:20210322T103000 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Sarthak Parikh\, Title: Conformal blo cks from higher-point holography URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-sarthak-parikh-title-conformal-blocks-from-higher-point-holography-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nA central dogma in the current theoretical study of black holes is th at they can be viewed as an ordinary quantum system with large degrees of freedom. In the talk I will argue that replica wormhole gives strong evide nce to the central dogma\, including deriving the Page curve of the Hawkin g radiation\, and an explicit construction of a complete basis of the blac k hole interior states. We will also comment on its relation with violatio n of global symmetry in quantum gravity.\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:s10fhg8ij7ie89f7l1oqn9uvj8@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nJoin Zoom Meeting\nhttps://technion.zoom.us/j/95305234270\nMeeting ID : 953 0523 4270\nOne tap mobile\n+97239786688\,\,95305234270# Israel\n+972 553301762\,\,95305234270# Israel\nDial by your location\n +972 3 97 8 6688 Israel\n +972 55 330 1762 Israel\nMeeting ID: 953 0523 4270 \nFind your local number: https://technion.zoom.us/u/adh2WGvC3Z DTSTART;TZID=Asia/Jerusalem:20210322T140000 DTEND;TZID=Asia/Jerusalem:20210322T153000 LOCATION:https://technion.zoom.us/j/95305234270 SEQUENCE:0 SUMMARY:Anton’s talk URL:https://phsites.technion.ac.il/strings/event/antons-talk/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nJoin Zoom Me eting

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\nhttps://technion.zoom.us/j/95305234270Meeting ID: 95 3 0523 4270

\n

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\n END:VEVENT BEGIN:VEVENT UID:10nng9kkudngo6b2oi3shr5ssu@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Sebastians journal club\nTime: Apr 5\, 2021 02:00 PM Jerusalem \nJoin Zoom Meeting\nhttps://technion.zoom.us/j/94390689273\nMeeting ID: 9 43 9068 9273\nOne tap mobile\n+972553301762\,\,94390689273# Israel\n+97239 786688\,\,94390689273# Israel\nDial by your location\n +972 55 330 1762 Israel\n +972 3 978 6688 Israel\nMeeting ID: 943 9068 9273\nFi nd your local number: https://technion.zoom.us/u/aCe2bOff3 DTSTART;TZID=Asia/Jerusalem:20210405T140000 DTEND;TZID=Asia/Jerusalem:20210405T150000 LOCATION:Room 300 SEQUENCE:0 SUMMARY:Sebastian’s journal club URL:https://phsites.technion.ac.il/strings/event/sebastians-journal-club-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 3 978 6688 Israel

\n +972 55 330 1762 I srael

\nMeeting ID: 953 0523 4270

\nFind your local number: http s://technion.zoom.us/u/adh2WGvC3Z\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Sebas tians journal club

\n

\nTime: Apr 5\, 2021 02:00 PM JerusalemJo in Zoom Meeting

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\nhttps://technion.zoom.us/j/94390689273Meet ing ID: 943 9068 9273

\n

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\n END:VEVENT BEGIN:VEVENT UID:12v6a3de181f6aan7d78d01ime@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Black hole microstate statistics from Euclidean wormhole s\nAbstract: Over the last several years\, it has been shown that black ho le microstate level statistics in various models of 2D gravity are encoded in wormhole amplitudes. These statistics quantitatively agree with predi ctions of random matrix theory for chaotic quantum systems\; this behavior is realized since the 2D theories in question are dual to matrix models. But what about black hole microstate statistics for Einstein gravity in 3 D and higher spacetime dimensions\, and ultimately in non-perturbative str ing theory? We will discuss progress in these directions. In 3D\, we com pute a wormhole amplitude that encodes the energy level statistics of BTZ black holes. In 4D and higher\, we find analogous wormholes which appear to encode the level statistics of small black holes just above threshold. Finally\, we study analogous Euclidean wormholes in the low-energy limit of type IIB string theory\; we provide evidence that they encode the level statistics of small black holes just above threshold in AdS5 x S5. Remar kably\, these wormholes appear to be stable in appropriate regimes\, and d ominate over brane-anti-brane nucleation processes in the computation of b lack hole microstate statistics. DTSTART;TZID=Asia/Jerusalem:20210406T160000 DTEND;TZID=Asia/Jerusalem:20210406T170000 SEQUENCE:0 SUMMARY:Jordan Cotler URL:https://phsites.technion.ac.il/strings/event/avia-raviv-moshe/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 55 330 1762 Israel

\n +972 3 978 6688 Israel

\nMeeting ID: 943 9068 9273

\nFind your local nu mber: https://technion.zoom.us/u/aCe2bOff3\\n\\n Title: Black hole microstate statistics from Euclidean wormholes

\n END:VEVENT BEGIN:VEVENT UID:qr5rnpnkvat8ap8fe9ghq8khf0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20210412T113000 DTEND;TZID=Asia/Jerusalem:20210412T123000 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Omer Tsur\, Title: Searching for muon ic force carriers with ATLAS URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-omer-tsur-title-searching-for-muonic-force-carriers-with-atlas-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract: Over the last several years\, it has been shown that black hole microstate leve l statistics in various models of 2D gravity are encoded in wormhole ampli tudes. These statistics quantitatively agree with predictions of random m atrix theory for chaotic quantum systems\; this behavior is realized since the 2D theories in question are dual to matrix models. But what about bl ack hole microstate statistics for Einstein gravity in 3D and higher space time dimensions\, and ultimately in non-perturbative string theory? We wi ll discuss progress in these directions. In 3D\, we compute a wormhole am plitude that encodes the energy level statistics of BTZ black holes. In 4 D and higher\, we find analogous wormholes which appear to encode the leve l statistics of small black holes just above threshold. Finally\, we stud y analogous Euclidean wormholes in the low-energy limit of type IIB string theory\; we provide evidence that they encode the level statistics of sma ll black holes just above threshold in AdS5 x S5. Remarkably\, these worm holes appear to be stable in appropriate regimes\, and dominate over brane -anti-brane nucleation processes in the computation of black hole microsta te statistics.\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:068b584e17tbl2nmb35n2dp68u@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Amos’s journal club\nTime: Apr 19\, 2021 02:00 PM Jerusalem\nJ oin Zoom Meeting\nhttps://technion.zoom.us/j/99684338553\nMeeting ID: 996 8433 8553\nOne tap mobile\n+972553301762\,\,99684338553# Israel\n+97239786 688\,\,99684338553# Israel\nDial by your location\n +972 55 330 176 2 Israel\n +972 3 978 6688 Israel\nMeeting ID: 996 8433 8553\nFind your local number: https://technion.zoom.us/u/aWZao6DwF DTSTART;TZID=Asia/Jerusalem:20210419T140000 DTEND;TZID=Asia/Jerusalem:20210419T150000 LOCATION:Room. 300 SEQUENCE:0 SUMMARY:Amos’s journal club URL:https://phsites.technion.ac.il/strings/event/amoss-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Amos’ s journal club

\n

\nTime: Apr 19\, 2021 02:00 PM JerusalemJoin Zoom Meeting

\n

\nhttps://technion.zoom.us/j/99684338553Meeting ID: 996 8433 8553

\n

\nOne tap mobile

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\n+97239786688\,\,99684338553# IsraelDial by your location

\n END:VEVENT BEGIN:VEVENT UID:402qsamr4a7r7rr8359gvb1cb9@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Defects and Anomalies in Quantum Field Theories\nAbstrac t: I will review some recent developments in understanding the structure o f anomalies in the presence of defects in CFTs. The defect insertions lead to new ‘t Hooft anomalies and conformal anomalies on the defect worldvolu me. The latter give riseto defect analogs of the c-theorem (a-theorem) whi ch establish the monotonicity of defect RG flows. With supersymmetry\, th e defect conformal anomalies are related to the ‘t Hooft anomalies for cer tain U(1) R-symmetry in a simple way\, and can be determinednon-perturbati vely from an algebraic procedure. In the talk I’ll mostly focus on surface defects to be concrete and comment on extensions and future directions to wards the end. DTSTART;TZID=Asia/Jerusalem:20210420T163000 DTEND;TZID=Asia/Jerusalem:20210420T173000 SEQUENCE:0 SUMMARY:Yifan Wang – SPECIAL TIME URL:https://phsites.technion.ac.il/strings/event/yifan-wang/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 55 330 1762 Israel

\n +972 3 978 6688 Israel

\nMeeting ID: 996 8433 8553

\nFind your local numbe r: https://technion.zoom.us/u/aWZao6DwF\\n\\n Title: Defect s and Anomalies in Quantum Field Theories

\nAbstract: I will review some recent developments in understanding the structure of anomalies in th e presence of defects in CFTs. The defect insertions lead to new ‘t Hooft anomalies and conformal anomalies on the defect worldvolume. The latter gi ve riseto defect analogs of the c-theorem (a-theorem) which establish the monotonicity of defect RG flows. With supersymmetry\, the defect conforma l anomalies are related to the ‘t Hooft anomalies for certain U(1) R-symme try in a simple way\, and can be determinednon-perturbatively from an alge braic procedure. In the talk I’ll mostly focus on surface defects to be co ncrete and comment on extensions and future directions towards the end.

\n END:VEVENT BEGIN:VEVENT UID:39cg5oe9cs1te52uusvepcl39n@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Journal club\nTime: Apr 26\, 2021 02:00 PM Jerusalem\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)\n Apr 26 \, 2021 02:00 PM\n May 3\, 2021 02:00 PM\n May 10\, 2021 02: 00 PM\n May 17\, 2021 02:00 PM\n May 24\, 2021 02:00 PM\n May 31\, 2021 02:00 PM\n Jun 7\, 2021 02:00 PM\n Jun 14 \, 2021 02:00 PM\n Jun 21\, 2021 02:00 PM\n Jun 28\, 2021 02 :00 PM\nPlease download and import the following iCalendar (.ics) files to your calendar system.\nWeekly: https://technion.zoom.us/meeting/tJAvcu2tr jsvGNR8IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_zi GJYjY1vxDbcE3ULQRS7P7VxM6RAGdrk\nJoin Zoom Meeting\nhttps://technion.zoom. us/j/94254500520\nMeeting ID: 942 5450 0520\nOne tap mobile\n+97239786688\ ,\,94254500520# Israel\n+972553301762\,\,94254500520# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel \nMeeting ID: 942 5450 0520\nFind your local number: https://technion.zoom .us/u/aoIxBMYZh DTSTART;TZID=Asia/Jerusalem:20210426T140000 DTEND;TZID=Asia/Jerusalem:20210426T150000 LOCATION:room 300 SEQUENCE:0 SUMMARY:Oren’s journal club URL:https://phsites.technion.ac.il/strings/event/orens-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Journ al club

\n

\nTime: Apr 26\, 2021 02:00 PM Jerusalem

\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)

\n Apr 2 6\, 2021 02:00 PM

\n May 3\, 2021 02:00 PM

\n May 10\, 2021 02:00 PM

\n May 17\, 2021 02:00 PM

\n Ma y 24\, 2021 02:00 PM

\n May 31\, 2021 02:00 PM

\n Jun 7\, 2021 02:00 PM

\n Jun 14\, 2021 02:00 PM

\n Jun 21\, 2021 02:00 PM

\n Jun 28\, 2021 02:00 PM

\nPleas e download and import the following iCalendar (.ics) files to your calenda r system.

\nWeekly: https://technion.zoom.us/meeting/tJAvcu2trjsvGNR8 IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_ziGJYjY1v xDbcE3ULQRS7P7VxM6RAGdrkJoin Zoom Meeting

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\nhttps://technion .zoom.us/j/94254500520Meeting ID: 942 5450 0520

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\nOne tap mo bile

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\n END:VEVENT BEGIN:VEVENT UID:15ghgfdcj2tqjhcn82h95ll4vr@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Hints of Gravitational Ergodicity\nAbstract: Recent deve lopments on black holes have shown that a\nunitarity-compatible Page curve can be obtained from an\nensemble-averaged semi-classical approximation. In this talk\, we\nemphasize (1) that this peculiar manifestation of unita rity is not\nspecific to black holes\, and (2) that it can emerge from a s ingle\nrealization of an underlying unitary theory. To make things explici t\,\nwe consider a hard sphere gas leaking slowly from a small box into a \nbigger box. We reproduce the unitarity-compatible Page curve of this\nsy stem\, semi-classically. Berry’s ensemble in which the eigenstates\nlive\, plays a crucial role. The computation has structural parallels\nto replic a wormholes\, relies crucially on ensemble averaging at each\nepoch\, and reveals the interplay between the multiple time-scales in\nthe problem. Wo rking with the ensemble averaged state rather than the\nentanglement entro py\, we can also engineer an information “paradox”.\nOur system provides a concrete example in which the ensemble\nunderlying the semi-classical Pag e curve is an ergodic proxy for a\ntime average\, and not an explicit aver age over many theories. The\nquestions we address here are logically indep endent of the existence\nof horizons\, so we expect that semi-classical gr avity should also be\nviewed in a similar light. DTSTART;TZID=Asia/Jerusalem:20210427T160000 DTEND;TZID=Asia/Jerusalem:20210427T170000 SEQUENCE:0 SUMMARY:Chethan Krishnan URL:https://phsites.technion.ac.il/strings/event/chethan-krishnan/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 3 978 6688 Israel

\n +972 55 330 1762 Israel

\nMeeting ID: 942 5450 0520

\nFind your local number: https://technion.zoom.us/u/aoIxBM YZh\\n\\n Title: Hints of Gravitational Ergodicity

\nAbstract: Recent developments on black holes have shown that a

\n END:VEVENT BEGIN:VEVENT UID:437l22cks10lko8r2kevvel7pr@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Journal club\nTime: Apr 26\, 2021 02:00 PM Jerusalem\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)\n Apr 26 \, 2021 02:00 PM\n May 3\, 2021 02:00 PM\n May 10\, 2021 02: 00 PM\n May 17\, 2021 02:00 PM\n May 24\, 2021 02:00 PM\n May 31\, 2021 02:00 PM\n Jun 7\, 2021 02:00 PM\n Jun 14 \, 2021 02:00 PM\n Jun 21\, 2021 02:00 PM\n Jun 28\, 2021 02 :00 PM\nPlease download and import the following iCalendar (.ics) files to your calendar system.\nWeekly: https://technion.zoom.us/meeting/tJAvcu2tr jsvGNR8IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_zi GJYjY1vxDbcE3ULQRS7P7VxM6RAGdrk\nJoin Zoom Meeting\nhttps://technion.zoom. us/j/94254500520\nMeeting ID: 942 5450 0520\nOne tap mobile\n+97239786688\ ,\,94254500520# Israel\n+972553301762\,\,94254500520# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel \nMeeting ID: 942 5450 0520\nFind your local number: https://technion.zoom .us/u/aoIxBMYZh DTSTART;TZID=Asia/Jerusalem:20210503T140000 DTEND;TZID=Asia/Jerusalem:20210503T150000 LOCATION:Room 300 SEQUENCE:0 SUMMARY:Ben’s journal club URL:https://phsites.technion.ac.il/strings/event/bens-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nunitarity-compatible Page curve can be obt ained from an

\nensemble-averaged semi-classical approximation. In th is talk\, we

\nemphasize (1) that this peculiar manifestation of unit arity is not

\nspecific to black holes\, and (2) that it can emerge f rom a single

\nrealization of an underlying unitary theory. To make t hings explicit\,

\nwe consider a hard sphere gas leaking slowly from a small box into a

\nbigger box. We reproduce the unitarity-compatibl e Page curve of this

\nsystem\, semi-classically. Berry’s ensemble in which the eigenstates

\nlive\, plays a crucial role. The computation has structural parallels

\nto replica wormholes\, relies crucially o n ensemble averaging at each

\nepoch\, and reveals the interplay betw een the multiple time-scales in

\nthe problem. Working with the ensem ble averaged state rather than the

\nentanglement entropy\, we can al so engineer an information “paradox”.

\nOur system provides a concret e example in which the ensemble

\nunderlying the semi-classical Page curve is an ergodic proxy for a

\ntime average\, and not an explicit average over many theories. The

\nquestions we address here are logic ally independent of the existence

\nof horizons\, so we expect that s emi-classical gravity should also be

\nviewed in a similar light.\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Journ al club

\n

\nTime: Apr 26\, 2021 02:00 PM Jerusalem

\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)

\n Apr 2 6\, 2021 02:00 PM

\n May 3\, 2021 02:00 PM

\n May 10\, 2021 02:00 PM

\n May 17\, 2021 02:00 PM

\n Ma y 24\, 2021 02:00 PM

\n May 31\, 2021 02:00 PM

\n Jun 7\, 2021 02:00 PM

\n Jun 14\, 2021 02:00 PM

\n Jun 21\, 2021 02:00 PM

\n Jun 28\, 2021 02:00 PM

\nPleas e download and import the following iCalendar (.ics) files to your calenda r system.

\nWeekly: https://technion.zoom.us/meeting/tJAvcu2trjsvGNR8 IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_ziGJYjY1v xDbcE3ULQRS7P7VxM6RAGdrkJoin Zoom Meeting

\n

\nhttps://technion .zoom.us/j/94254500520Meeting ID: 942 5450 0520

\n

\nOne tap mo bile

\n+97239786688\,\,94254500520# Israel

\n+972553301762\,\,94 254500520# IsraelDial by your location

\n END:VEVENT BEGIN:VEVENT UID:1eo4fmlu7hdspvc0ev6o7tdnd0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Stringy ER=EPR.\nAbstract: I will discuss a Lorentzian i nterpretation of the FZZ duality as an equivalence between string perturba tion theory about a two sided black hole and an entangled combination of d isconnected microstates. The microstates involve a condensate of folded st rings extending from a strong coupling region. Part of the machinery invol ves string theory defined on Schwinger-Keldysh contours in target space\, and a novel contour of integration of the string moduli associated to angu lar quantization. I will further present an AdS3 uplift of this duality. DTSTART;TZID=Asia/Jerusalem:20210504T170000 DTEND;TZID=Asia/Jerusalem:20210504T180000 SEQUENCE:0 SUMMARY:Daniel Jafferis – SPECIAL TIME URL:https://phsites.technion.ac.il/strings/event/daniel-jafferis-special-ti me/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 3 978 6688 Israel

\n +972 55 330 1762 Israel

\nMeeting ID: 942 5450 0520

\nFind your local number: https://technion.zoom.us/u/aoIxBM YZh\\n\\n Title: String y ER=EPR.

\nAbstract: I will discuss a Lorentzian interpretation of the FZZ duality as an equivalence between string perturbation theory about a two sided black hole and an entangled combination of disconnected micro states. The microstates involve a condensate of folded strings extending f rom a strong coupling region. Part of the machinery involves string theory defined on Schwinger-Keldysh contours in target space\, and a novel conto ur of integration of the string moduli associated to angular quantization. I will further present an AdS3 uplift of this duality.

\n END:VEVENT BEGIN:VEVENT UID:5sbpn83eh5edgcqq3gtc8fnr6d@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Journal club\nTime: Apr 26\, 2021 02:00 PM Jerusalem\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)\n Apr 26 \, 2021 02:00 PM\n May 3\, 2021 02:00 PM\n May 10\, 2021 02: 00 PM\n May 17\, 2021 02:00 PM\n May 24\, 2021 02:00 PM\n May 31\, 2021 02:00 PM\n Jun 7\, 2021 02:00 PM\n Jun 14 \, 2021 02:00 PM\n Jun 21\, 2021 02:00 PM\n Jun 28\, 2021 02 :00 PM\nPlease download and import the following iCalendar (.ics) files to your calendar system.\nWeekly: https://technion.zoom.us/meeting/tJAvcu2tr jsvGNR8IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_zi GJYjY1vxDbcE3ULQRS7P7VxM6RAGdrk\nJoin Zoom Meeting\nhttps://technion.zoom. us/j/94254500520\nMeeting ID: 942 5450 0520\nOne tap mobile\n+97239786688\ ,\,94254500520# Israel\n+972553301762\,\,94254500520# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel \nMeeting ID: 942 5450 0520\nFind your local number: https://technion.zoom .us/u/aoIxBMYZh DTSTART;TZID=Asia/Jerusalem:20210510T140000 DTEND;TZID=Asia/Jerusalem:20210510T150000 LOCATION:Room 300 SEQUENCE:0 SUMMARY:Orr’s journal club URL:https://phsites.technion.ac.il/strings/event/orrs-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\nTopic: Journ al club

\n

\nTime: Apr 26\, 2021 02:00 PM Jerusalem

\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)

\n Apr 2 6\, 2021 02:00 PM

\n May 3\, 2021 02:00 PM

\n May 10\, 2021 02:00 PM

\n May 17\, 2021 02:00 PM

\n Ma y 24\, 2021 02:00 PM

\n May 31\, 2021 02:00 PM

\n Jun 7\, 2021 02:00 PM

\n Jun 14\, 2021 02:00 PM

\n Jun 21\, 2021 02:00 PM

\n Jun 28\, 2021 02:00 PM

\nPleas e download and import the following iCalendar (.ics) files to your calenda r system.

\nWeekly: https://technion.zoom.us/meeting/tJAvcu2trjsvGNR8 IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_ziGJYjY1v xDbcE3ULQRS7P7VxM6RAGdrkJoin Zoom Meeting

\n

\nhttps://technion .zoom.us/j/94254500520Meeting ID: 942 5450 0520

\n

\nOne tap mo bile

\n+97239786688\,\,94254500520# Israel

\n+972553301762\,\,94 254500520# IsraelDial by your location

\n END:VEVENT BEGIN:VEVENT UID:284nf21193odds02j0ojilos1r@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Progress in celestial holography DTSTART;TZID=Asia/Jerusalem:20210511T160000 DTEND;TZID=Asia/Jerusalem:20210511T170000 SEQUENCE:0 SUMMARY:Andrew Strominger URL:https://phsites.technion.ac.il/strings/event/andrew-strominger/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n +972 3 978 6688 Israel

\n +972 55 330 1762 Israel

\nMeeting ID: 942 5450 0520

\nFind your local number: https://technion.zoom.us/u/aoIxBM YZh\\n\\n Progress in c elestial holography

\n END:VEVENT BEGIN:VEVENT UID:6arhvlcbr0v5k945cv0l9apkcv@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Deviations from factorization in SYK\nAbstract: Recently \, there has been a revived interest in multi-boundary holographic systems and the contribution of Euclidean wormholes\, in particular in Jackiw-Tei telboim (JT) gravity. We consider Sachdev-Ye-Kitaev (SYK) as a microscopic model for such holographic systems. While in JT gravity the non-factorizi ng contributions come from geometric wormholes\, we get that in SYK there are much larger contributions. We give a diagrammatic description of all t hose leading contributions\, analogous to Feynman diagrams. The holographi c behavior is particularly interesting for fixed SYK couplings due to fact orization\, and we comment on that as well. DTSTART;TZID=Asia/Jerusalem:20210518T160000 DTEND;TZID=Asia/Jerusalem:20210518T170000 SEQUENCE:0 SUMMARY:Vladimir Narovlansky URL:https://phsites.technion.ac.il/strings/event/vladimir-narovlansky/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Deviat ions from factorization in SYK

\nAbstract: Recently\, there has been a revived interest in multi-boundary holographic systems and the contribu tion of Euclidean wormholes\, in particular in Jackiw-Teitelboim (JT) grav ity. We consider Sachdev-Ye-Kitaev (SYK) as a microscopic model for such h olographic systems. While in JT gravity the non-factorizing contributions come from geometric wormholes\, we get that in SYK there are much larger c ontributions. We give a diagrammatic description of all those leading cont ributions\, analogous to Feynman diagrams. The holographic behavior is par ticularly interesting for fixed SYK couplings due to factorization\, and w e comment on that as well.

\n END:VEVENT BEGIN:VEVENT UID:ZOOM93315461558 DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:Physics Conference is inviting you to a scheduled Zoom meeting. \nJoin Zoom Meeting\nhttps://zoom.us/j/93315461558?pwd=ajBIOUFmRGI5b1FMUUR 5OG5Uclg0QT09\nMeeting ID: 933 1546 1558\nPasscode: 571258\nJoin by SIP\n9 3315461558@zoomcrc.com\nJoin by H.323\n162.255.37.11 (US West)\n162.255.36 .11 (US East)\n213.19.144.110 (Amsterdam Netherlands)\n213.244.140.110 (Ge rmany)\nMeeting ID: 933 1546 1558\nPasscode: 571258 DTSTART;TZID=Asia/Jerusalem:20210519T130000 DTEND;TZID=Asia/Jerusalem:20210519T210000 LOCATION:https://zoom.us/j/93315461558?pwd=ajBIOUFmRGI5b1FMUUR5OG5Uclg0QT09 RRULE:FREQ=DAILY;UNTIL=20210520T160000Z;INTERVAL=1;WKST=SU SEQUENCE:0 SUMMARY:11th Crete Regional Meeting in String Theory URL:https://phsites.technion.ac.il/strings/event/11th-crete-regional-meetin g-in-string-theory/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Physics Confe rence is inviting you to a scheduled Zoom meeting.

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\n END:VEVENT BEGIN:VEVENT UID:04obtvab7acmgeooa0ogtkldra@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Journal club\nTime: Apr 26\, 2021 02:00 PM Jerusalem\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)\n Apr 26 \, 2021 02:00 PM\n May 3\, 2021 02:00 PM\n May 10\, 2021 02: 00 PM\n May 17\, 2021 02:00 PM\n May 24\, 2021 02:00 PM\n May 31\, 2021 02:00 PM\n Jun 7\, 2021 02:00 PM\n Jun 14 \, 2021 02:00 PM\n Jun 21\, 2021 02:00 PM\n Jun 28\, 2021 02 :00 PM\nPlease download and import the following iCalendar (.ics) files to your calendar system.\nWeekly: https://technion.zoom.us/meeting/tJAvcu2tr jsvGNR8IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_zi GJYjY1vxDbcE3ULQRS7P7VxM6RAGdrk\nJoin Zoom Meeting\nhttps://technion.zoom. us/j/94254500520\nMeeting ID: 942 5450 0520\nOne tap mobile\n+97239786688\ ,\,94254500520# Israel\n+972553301762\,\,94254500520# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel \nMeeting ID: 942 5450 0520\nFind your local number: https://technion.zoom .us/u/aoIxBMYZh DTSTART;TZID=Asia/Jerusalem:20210524T140000 DTEND;TZID=Asia/Jerusalem:20210524T150000 LOCATION:Room 300 SEQUENCE:0 SUMMARY:Assaf’s journal club URL:https://phsites.technion.ac.il/strings/event/assafs-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\n162.255 .37.11 (US West)

\n162.255.36.11 (US East)

\n213.19.144.110 (Ams terdam Netherlands)

\n213.244.140.110 (Germany)

\nMeeting ID: 93 3 1546 1558

\nPasscode: 571258\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\n

\nTime: Apr 26\, 2021 02:00 PM Jerusalem

\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)

\n Apr 2 6\, 2021 02:00 PM

\n May 3\, 2021 02:00 PM

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\n Ma y 24\, 2021 02:00 PM

\n May 31\, 2021 02:00 PM

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\nWeekly: https://technion.zoom.us/meeting/tJAvcu2trjsvGNR8 IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_ziGJYjY1v xDbcE3ULQRS7P7VxM6RAGdrkJoin Zoom Meeting

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\nhttps://technion .zoom.us/j/94254500520

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\nMeeting ID: 942 5450 0520

\nFind your local number: https://technion.zoom.us/u/aoIxBM YZh\\n\\n Title: 6d/5d dualities from Higgsing

\nAbstract: (Based on https://arxiv.org/abs/2103.02799 with a slightly different title.)

\n END:VEVENT BEGIN:VEVENT UID:qp179rabkkdv1chtaqj91aejr0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20210531T113000 DTEND;TZID=Asia/Jerusalem:20210531T124500 LOCATION:Lewiner Seminar Room (412) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Orr Sela\, Title: Emergent Symmetries in Quantum Field Theory URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-orr-sela-title-emergent-symmetries-in-quantum-field-theory-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

5d supersymmetric gauge theories are sometimes UV completed by 6d SCFTs. One such example is the duality between the affine quiver gauge theory in 5d and 6d so-called “conformal matter” theory label ed by a D or E type lie algebra. In this talk we will see that starting fr om this duality and performing nilpotent Higgsing on both sides\, one can generate a huge set of 6d/5d dualities. The 6d side often involves a twist along a compactification by a discrete symmetry. The 5d side does not alw ays admit a gauge theory description\, but sometimes does and involves an exceptional gauge group including G or F type or an exceptional (non-funda mental) matter content. As a byproduct\, we get a web-based formalism to c ompute the Nekrasov partition function for some of the exceptional 5d gaug e theories.\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:24h9krg4514ko8mdt5uloedc5d@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Journal club\nTime: Apr 26\, 2021 02:00 PM Jerusalem\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)\n Apr 26 \, 2021 02:00 PM\n May 3\, 2021 02:00 PM\n May 10\, 2021 02: 00 PM\n May 17\, 2021 02:00 PM\n May 24\, 2021 02:00 PM\n May 31\, 2021 02:00 PM\n Jun 7\, 2021 02:00 PM\n Jun 14 \, 2021 02:00 PM\n Jun 21\, 2021 02:00 PM\n Jun 28\, 2021 02 :00 PM\nPlease download and import the following iCalendar (.ics) files to your calendar system.\nWeekly: https://technion.zoom.us/meeting/tJAvcu2tr jsvGNR8IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_zi GJYjY1vxDbcE3ULQRS7P7VxM6RAGdrk\nJoin Zoom Meeting\nhttps://technion.zoom. us/j/94254500520\nMeeting ID: 942 5450 0520\nOne tap mobile\n+97239786688\ ,\,94254500520# Israel\n+972553301762\,\,94254500520# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel \nMeeting ID: 942 5450 0520\nFind your local number: https://technion.zoom .us/u/aoIxBMYZh DTSTART;TZID=Asia/Jerusalem:20210531T140000 DTEND;TZID=Asia/Jerusalem:20210531T150000 LOCATION:Room 300 SEQUENCE:0 SUMMARY:Paolo’s journal club URL:https://phsites.technion.ac.il/strings/event/paolos-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\n

\nTime: Apr 26\, 2021 02:00 PM Jerusalem

\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)

\n Apr 2 6\, 2021 02:00 PM

\n May 3\, 2021 02:00 PM

\n May 10\, 2021 02:00 PM

\n May 17\, 2021 02:00 PM

\n Ma y 24\, 2021 02:00 PM

\n May 31\, 2021 02:00 PM

\n Jun 7\, 2021 02:00 PM

\n Jun 14\, 2021 02:00 PM

\n Jun 21\, 2021 02:00 PM

\n Jun 28\, 2021 02:00 PM

\nPleas e download and import the following iCalendar (.ics) files to your calenda r system.

\nWeekly: https://technion.zoom.us/meeting/tJAvcu2trjsvGNR8 IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_ziGJYjY1v xDbcE3ULQRS7P7VxM6RAGdrkJoin Zoom Meeting

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\nhttps://technion .zoom.us/j/94254500520

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\n+97239786688\,\,94254500520# Israel

\n+972553301762\,\,94 254500520# Israel

\n +972 3 978 6688 Israel

\n +972 55 330 1762 Israel

\nMeeting ID: 942 5450 0520

\nFind your local number: https://technion.zoom.us/u/aoIxBM YZh\\n\\n Title: The On set of Quantum Chaos

\nAbstract: We study the quantum version of the Lyapunov exponent in disordered theories. Generically the quantum Lyapuno v exponent can only be computed in isolated CFTs\, and so not much is know n about the way in which chaos grows as we deform the theory away from wea k coupling. In this talk we describe families of theories in which the dis order coupling is an exactly marginal deformation\, allowing us to follow the Lyapunov exponent from weak to strong coupling. We find surprising beh aviors in some cases\, including a discontinuous transition into chaos\, w hich we compare to the expectation from classical chaos. We also describe a new method allowing for computations in nontrivial CFTs deformed by diso rder.

\n END:VEVENT BEGIN:VEVENT UID:le30n6fg1eh2g0mbhobu9vqu7s@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20210607T113000 DTEND;TZID=Asia/Jerusalem:20210607T124500 LOCATION:Lewiner Seminar Room (412) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Evyatar Sabag\, Title: The title: 4d Lagrangians From 6d RG Flows URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-evyatar-sabag-title-the-title-4d-lagrangians-from-6d-rg-flows-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:2b8790o22vkrogog1el92gj8uj@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Journal club\nTime: Apr 26\, 2021 02:00 PM Jerusalem\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)\n Apr 26 \, 2021 02:00 PM\n May 3\, 2021 02:00 PM\n May 10\, 2021 02: 00 PM\n May 17\, 2021 02:00 PM\n May 24\, 2021 02:00 PM\n May 31\, 2021 02:00 PM\n Jun 7\, 2021 02:00 PM\n Jun 14 \, 2021 02:00 PM\n Jun 21\, 2021 02:00 PM\n Jun 28\, 2021 02 :00 PM\nPlease download and import the following iCalendar (.ics) files to your calendar system.\nWeekly: https://technion.zoom.us/meeting/tJAvcu2tr jsvGNR8IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_zi GJYjY1vxDbcE3ULQRS7P7VxM6RAGdrk\nJoin Zoom Meeting\nhttps://technion.zoom. us/j/94254500520\nMeeting ID: 942 5450 0520\nOne tap mobile\n+97239786688\ ,\,94254500520# Israel\n+972553301762\,\,94254500520# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel \nMeeting ID: 942 5450 0520\nFind your local number: https://technion.zoom .us/u/aoIxBMYZh DTSTART;TZID=Asia/Jerusalem:20210607T140000 DTEND;TZID=Asia/Jerusalem:20210607T150000 LOCATION:Room 300 SEQUENCE:0 SUMMARY:Bar’s journal club URL:https://phsites.technion.ac.il/strings/event/bars-journal-club-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\n

\nTime: Apr 26\, 2021 02:00 PM Jerusalem

\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)

\n Apr 2 6\, 2021 02:00 PM

\n May 3\, 2021 02:00 PM

\n May 10\, 2021 02:00 PM

\n May 17\, 2021 02:00 PM

\n Ma y 24\, 2021 02:00 PM

\n May 31\, 2021 02:00 PM

\n Jun 7\, 2021 02:00 PM

\n Jun 14\, 2021 02:00 PM

\n Jun 21\, 2021 02:00 PM

\n Jun 28\, 2021 02:00 PM

\nPleas e download and import the following iCalendar (.ics) files to your calenda r system.

\nWeekly: https://technion.zoom.us/meeting/tJAvcu2trjsvGNR8 IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_ziGJYjY1v xDbcE3ULQRS7P7VxM6RAGdrkJoin Zoom Meeting

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\nhttps://technion .zoom.us/j/94254500520

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\n +972 3 978 6688 Israel

\n +972 55 330 1762 Israel

\nMeeting ID: 942 5450 0520

\nFind your local number: https://technion.zoom.us/u/aoIxBM YZh\\n\\n Title: Large Charge Phases of CFTs

\nAbstract: CFTs with additional global symmet ries often possess significant simplification in the regime in which the c harges associated with the global symmetries become large. In this talk\, we review some recent developments in the subject of CFTs atlarge global c harges. We present results that are based on two papers: The first\, (base d on https://arxiv.org/abs/2102 .12583)involves the study of constraints due to spontaneously broken b oosts and dilatation symmetries around heavy states\, and the implications of the symmetry breaking for the spectrum of CFTs. In the second\, we stu dy boundary conformal field theories (BCFTs) witha global U(1) symmetry at the large charge regime.

\n END:VEVENT BEGIN:VEVENT UID:10b980efqnntmksqj70ngtnn7l@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Journal club\nTime: Apr 26\, 2021 02:00 PM Jerusalem\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)\n Apr 26 \, 2021 02:00 PM\n May 3\, 2021 02:00 PM\n May 10\, 2021 02: 00 PM\n May 17\, 2021 02:00 PM\n May 24\, 2021 02:00 PM\n May 31\, 2021 02:00 PM\n Jun 7\, 2021 02:00 PM\n Jun 14 \, 2021 02:00 PM\n Jun 21\, 2021 02:00 PM\n Jun 28\, 2021 02 :00 PM\nPlease download and import the following iCalendar (.ics) files to your calendar system.\nWeekly: https://technion.zoom.us/meeting/tJAvcu2tr jsvGNR8IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_zi GJYjY1vxDbcE3ULQRS7P7VxM6RAGdrk\nJoin Zoom Meeting\nhttps://technion.zoom. us/j/94254500520\nMeeting ID: 942 5450 0520\nOne tap mobile\n+97239786688\ ,\,94254500520# Israel\n+972553301762\,\,94254500520# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel \nMeeting ID: 942 5450 0520\nFind your local number: https://technion.zoom .us/u/aoIxBMYZh DTSTART;TZID=Asia/Jerusalem:20210614T140000 DTEND;TZID=Asia/Jerusalem:20210614T150000 LOCATION:Room 300 SEQUENCE:0 SUMMARY:Belal’s journal club URL:https://phsites.technion.ac.il/strings/event/belals-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\n

\nTime: Apr 26\, 2021 02:00 PM Jerusalem

\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)

\n Apr 2 6\, 2021 02:00 PM

\n May 3\, 2021 02:00 PM

\n May 10\, 2021 02:00 PM

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\n Ma y 24\, 2021 02:00 PM

\n May 31\, 2021 02:00 PM

\n Jun 7\, 2021 02:00 PM

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\n Jun 28\, 2021 02:00 PM

\nPleas e download and import the following iCalendar (.ics) files to your calenda r system.

\nWeekly: https://technion.zoom.us/meeting/tJAvcu2trjsvGNR8 IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_ziGJYjY1v xDbcE3ULQRS7P7VxM6RAGdrkJoin Zoom Meeting

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\nhttps://technion .zoom.us/j/94254500520

\nOne tap mo bile

\n+97239786688\,\,94254500520# Israel

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\n +972 3 978 6688 Israel

\n +972 55 330 1762 Israel

\nMeeting ID: 942 5450 0520

\nFind your local number: https://technion.zoom.us/u/aoIxBM YZh\\n\\n \n END:VEVENT BEGIN:VEVENT UID:0uh8o75t7djsvu9hn0q1ruub9k@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Journal club CONTACT: DESCRIPTION:ayarom@technion.ac.il is inviting you to a scheduled Zoom meeti ng.\nTopic: Journal club\nTime: Apr 26\, 2021 02:00 PM Jerusalem\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)\n Apr 26 \, 2021 02:00 PM\n May 3\, 2021 02:00 PM\n May 10\, 2021 02: 00 PM\n May 17\, 2021 02:00 PM\n May 24\, 2021 02:00 PM\n May 31\, 2021 02:00 PM\n Jun 7\, 2021 02:00 PM\n Jun 14 \, 2021 02:00 PM\n Jun 21\, 2021 02:00 PM\n Jun 28\, 2021 02 :00 PM\nPlease download and import the following iCalendar (.ics) files to your calendar system.\nWeekly: https://technion.zoom.us/meeting/tJAvcu2tr jsvGNR8IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_zi GJYjY1vxDbcE3ULQRS7P7VxM6RAGdrk\nJoin Zoom Meeting\nhttps://technion.zoom. us/j/94254500520\nMeeting ID: 942 5450 0520\nOne tap mobile\n+97239786688\ ,\,94254500520# Israel\n+972553301762\,\,94254500520# Israel\nDial by your location\n +972 3 978 6688 Israel\n +972 55 330 1762 Israel \nMeeting ID: 942 5450 0520\nFind your local number: https://technion.zoom .us/u/aoIxBMYZh DTSTART;TZID=Asia/Jerusalem:20210628T140000 DTEND;TZID=Asia/Jerusalem:20210628T150000 LOCATION:Room 300 SEQUENCE:0 SUMMARY:Evyatar’s journal club URL:https://phsites.technion.ac.il/strings/event/evyatars-journal-club/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

Title: Com plexity for CFTs in General Dimensions

Abstract: In this ta lk\, I will discuss circuit complexity for conformal field theory states i n arbitrary dimensions. The circuits start from a primary state and move a long a unitary representation of the Lorentzian conformal group. I will co nsider different choices of distance functions and explain how they can be understood in terms of the geometry of coadjoint orbits of the conformal group. This analysis will highlight a connection between the coadjoint orb its of the conformal group and timelike geodesics in anti-de Sitter spacet imes\, with interesting implications regarding the holographic complexity proposals. This is based on a work with Nicolas Chagnet\, Jan de Boer and Claire Zukowski.\\n\\n ayarom@techni on.ac.il is inviting you to a scheduled Zoom meeting.

\n

\nTime: Apr 26\, 2021 02:00 PM Jerusalem

\n Every week on Mon\, until Jun 28\, 2021\, 10 occurrence(s)

\n Apr 2 6\, 2021 02:00 PM

\n May 3\, 2021 02:00 PM

\n May 10\, 2021 02:00 PM

\n May 17\, 2021 02:00 PM

\n Ma y 24\, 2021 02:00 PM

\n May 31\, 2021 02:00 PM

\n Jun 7\, 2021 02:00 PM

\n Jun 14\, 2021 02:00 PM

\n Jun 21\, 2021 02:00 PM

\n Jun 28\, 2021 02:00 PM

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\nWeekly: https://technion.zoom.us/meeting/tJAvcu2trjsvGNR8 IYp58Cw-i7Sav_ibTsDj/ics?icsToken=98tyKuCsrD4uH9SVtRuHRowIAI_4LO_ziGJYjY1v xDbcE3ULQRS7P7VxM6RAGdrkJoin Zoom Meeting

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\nhttps://technion .zoom.us/j/94254500520

\nOne tap mo bile

\n+97239786688\,\,94254500520# Israel

\n+972553301762\,\,94 254500520# Israel

\n +972 3 978 6688 Israel

\n +972 55 330 1762 Israel

\nMeeting ID: 942 5450 0520

\nFind your local number: https://technion.zoom.us/u/aoIxBM YZh\\n\\n Title: Emerge nt symmetries in 3d and compactification from 5d

\nAbstract: We stud y the phenomenon of symmetry enhancement in quantum field theories in thre e dimensions\, where the global symmetry of a model is larger in the IR th an in the UV. We focus on supersymmetric theories where the situation is m ore tractable\,and find an organizing principle for such enhancements in t he form of compactifications of 5d theories on Riemann surfaces with flux in their global symmetries. We illustrate this by considering the compacti fication of the so-called 5d Seiberg SCFTs on tori\,and obtain 3d theories with enhanced IR symmetries given by the 5d symmetry preserved by the cho sen flux.

\n END:VEVENT BEGIN:VEVENT UID:qo1m6os4sekrse641mtjdbi06o@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211004T113000 DTEND;TZID=Asia/Jerusalem:20211004T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Ran Segev\, Title: Asymmetric cumulan ts in high multiplicity pp collisions at LHC URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-ran-segev-title-asymmetric-cumulants-in-high-multiplicity-pp-collisions- at-lhc-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:uuposuf2o387s9hbv674036vak@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211011T113000 DTEND;TZID=Asia/Jerusalem:20211011T123000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Bar Tavor\, Title: AdS black hole sym metries and enstrophy URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-bar-tavor-title-ads-black-hole-symmetries-and-enstrophy-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:cobltn91ij2aklt05njdmouu9o@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211011T140000 DTEND;TZID=Asia/Jerusalem:20211011T150000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Gal Avner\, Title: Measuring the Rati o Between Di-muon and Di-electrons Final States in the Presence of Zero or One b-tag Jet in the ATLAS Experiment URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-gal-avner-title-measuring-the-ratio-between-di-muon-and-di-electrons-fin al-states-in-the-presence-of-zero-or-one-b-tag-jet-in-the-atlas-experiment -2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:euntnqu38d052v9nupp4cv28ks@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211018T113000 DTEND;TZID=Asia/Jerusalem:20211018T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Yaniv Weiss\, Title: EFT amplitudes v ia on-shell methods URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-yaniv-weiss-title-eft-amplitudes-via-on-shell-methods-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:3ofpqh45bgr1ck28fotukfs9tn@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: The structure of the initial conditions of the universe \nAbstract: I will review what we know about the initial conditions of the universe from observations. Then\, I will explain how they arise within t he framework of inflation\, and describe recent progress in classifying (o r “bootstrapping”) the possible correlation functions between primordial f luctuations. Finally\, time permitting\, I will touch upon work in progres s trying to apply the bootstrap philosophy to more general cosmologies. DTSTART;TZID=Asia/Jerusalem:20211026T160000 DTEND;TZID=Asia/Jerusalem:20211026T170000 SEQUENCE:0 SUMMARY:Guilherme L. Pimentel URL:https://phsites.technion.ac.il/strings/event/guilherme-l-pimentel/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: The st ructure of the initial conditions of the universe

\n END:VEVENT BEGIN:VEVENT UID:md3tdafcn64givoljn1r0caho0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211108T113000 DTEND;TZID=Asia/Jerusalem:20211108T124500 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Francesco Mignosa\, Title: On fixed p oints and phase transitions in five dimensions URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-francesco-mignosa-title-on-fixed-points-and-phase-transitions-in-five-di mensions-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract: I will review what we know about the initial conditions of the universe from obse rvations. Then\, I will explain how they arise within the framework of inf lation\, and describe recent progress in classifying (or “bootstrapping”) the possible correlation functions between primordial fluctuations. Finall y\, time permitting\, I will touch upon work in progress trying to apply t he bootstrap philosophy to more general cosmologies.\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:6f6jdpqcccuv4d9117vdr5uoul@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Holography of Chronology Protection\nAbstract: After an introduction to time-machine spacetimes and simple models of them\, I will discuss recent work with M. Tomasevic where we use holography to study qu antum effects when closed timelike curves (CTCs) are developed. We address the question of whether it is possible to send a signal across the chrono logy horizon\, passing into the region where CTCs are present. We find tha t the self-interaction of quantum fields manages to banish the passage of field excitations into the non-chronal region. Going further\, we compute the gravitational backreaction of the quantum fields\, and show that the n ull chronology horizon turns into a strong\, spacelike curvature singulari ty. This is one of the few controlled\, explicit examples where we can see quantum effects change a Cauchy horizon into a spacelike singularity. DTSTART;TZID=Asia/Jerusalem:20211109T160000 DTEND;TZID=Asia/Jerusalem:20211109T170000 SEQUENCE:0 SUMMARY:Roberto Emparan URL:https://phsites.technion.ac.il/strings/event/roberto-emparan/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Hologr aphy of Chronology Protection

\n END:VEVENT BEGIN:VEVENT UID:rod4eb1bbel2li0kg3mnbuiiso@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211115T113000 DTEND;TZID=Asia/Jerusalem:20211115T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Ofri Telem\, Title: Confinement and C hiral Symmetry Breaking in Near-SUSY Theories URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-ofri-telem-title-confinement-and-chiral-symmetry-breaking-in-near-susy-t heories/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract: After an introduction to ti me-machine spacetimes and simple models of them\, I will discuss recent wo rk with M. Tomasevic where we use holography to study quantum effects when closed timelike curves (CTCs) are developed. We address the question of w hether it is possible to send a signal across the chronology horizon\, pas sing into the region where CTCs are present. We find that the self-interac tion of quantum fields manages to banish the passage of field excitations into the non-chronal region. Going further\, we compute the gravitational backreaction of the quantum fields\, and show that the null chronology hor izon turns into a strong\, spacelike curvature singularity. This is one of the few controlled\, explicit examples where we can see quantum effects c hange a Cauchy horizon into a spacelike singularity.\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:42vfairg4is2jild3oquh9qi1v@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Mastering bounds on correlators\nAbstract: We discuss a new viewpoint onto the CFT landscape: bounds on values of CFT correlators. We show that such bounds can be obtained by constructing suitable ‘master functionals’. We present both numerical results for 3d CFTs as well as ex act results for correlators on the line. The latter follow from crossing s ymmetric dispersion relations. We briefly discuss how these may be used to study the Regge and flat space limits of CFT correlators. DTSTART;TZID=Asia/Jerusalem:20211116T160000 DTEND;TZID=Asia/Jerusalem:20211116T170000 SEQUENCE:0 SUMMARY:Miguel Paulos URL:https://phsites.technion.ac.il/strings/event/miguel-paulos/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: Master ing bounds on correlators

\n END:VEVENT BEGIN:VEVENT UID:1hn207oj3fle67k45b8qnqtdqg@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211122T113000 DTEND;TZID=Asia/Jerusalem:20211122T124500 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Chaja Baruch\, Title: Probing new axi al vectors at the intensity frontier URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-chaja-baruch-title-probing-new-axial-vectors-at-the-intensity-frontier/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract: We discuss a new viewpoint onto the CFT landscape: bounds on values of CFT correlators. We show that such bounds can be obtained by constructing suitable ‘master functionals’. We present both numerical results for 3d CFTs as well as exact results for co rrelators on the line. The latter follow from crossing symmetric dispersio n relations. We briefly discuss how these may be used to study the Regge a nd flat space limits of CFT correlators.\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:v3ibs2r0div2i870mbm459nrh4@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211206T113000 DTEND;TZID=Asia/Jerusalem:20211206T123000 SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Akhil Sivakumar \, Title: Fluctuating Hydrodynamics from holography URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-akhil-sivakumar-title-fluctuating-hydrodynamics-from-holography-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:5gh1sh5v7fs87ll6s3npk49mtr@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: TBA\nAbstract:TBA DTSTART;TZID=Asia/Jerusalem:20211207T160000 DTEND;TZID=Asia/Jerusalem:20211207T170000 SEQUENCE:0 SUMMARY:Micha Berkooz URL:https://phsites.technion.ac.il/strings/event/micha-berkooz/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: TBA

\n END:VEVENT BEGIN:VEVENT UID:ubgs396itnkj3moceakf3iagv4@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211213T113000 DTEND;TZID=Asia/Jerusalem:20211213T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Gadi Afek\, Title: Precision searches for new physics using optically levitated sensors URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-gadi-afek-title-precision-searches-for-new-physics-using-optically-levit ated-sensors-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract:TBA\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:73gsvb2rgrlfaeg2tm1mm2tfgt@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Bootstrapping N = 4 super-Yang-Mills on the conformal ma nifold\nAbstract: We study the N = 4 SYM stress tensor multiplet 4-point f unction for any value of the complexified coupling tau\, and in principle any gauge group (we focus on SU(2) and SU(3) for simplicity). By combining non-perturbative constraints from the numerical bootstrap with two exact constraints from supersymmetric localization\, we are able to compute uppe r bounds on low-lying CFT data (e.g. the Konishi) for any value of tau. Th ese upper bounds are very close to the 4-loop weak coupling predictions in the appropriate regime. We also give preliminary evidence that these uppe r bounds become small islands under reasonable assumptions\, in which case our method would provide a numerical solution to N = 4 SYM for any gauge group and tau. DTSTART;TZID=Asia/Jerusalem:20211214T103000 DTEND;TZID=Asia/Jerusalem:20211214T113000 SEQUENCE:0 SUMMARY:Shai Chester URL:https://phsites.technion.ac.il/strings/event/shai-chester-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n

Title:< /b>BootstrappingN= 4 super-Yang-Mills on the conformal manif old\n\n END:VEVENT BEGIN:VEVENT UID:37igacc500r1snh9l0h8kds3eo@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:TBA\nAbstract:TBA DTSTART;TZID=Asia/Jerusalem:20211214T120000 DTEND;TZID=Asia/Jerusalem:20211214T130000 SEQUENCE:0 SUMMARY:Ritam Sinha URL:https://phsites.technion.ac.il/strings/event/ritam-sinha/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

We study theAbstract:N= 4 SYM stress t ensor multiplet 4-point function for any value of the complexified couplin g tau\, and in principle any gauge group (we focus on SU(2) and SU(3) for simplicity). By combining non-perturbative constraints from the numerical bootstrap with two exact constraints from supersymmetric localization\, we are able to compute upper bounds on low-lying CFT data (e.g. the Konishi) for any value of tau. These upper bounds are very close to the 4-loop wea k coupling predictions in the appropriate regime. We also give preliminary evidence that these upper bounds become small islands under reasonable as sumptions\, in which case our method would provide a numerical solution toN= 4 SYM for any gauge group and tau.\\n\\n Title:TBA

\n END:VEVENT BEGIN:VEVENT UID:thtsf7vm981ngq2bi1utjkous0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211220T113000 DTEND;TZID=Asia/Jerusalem:20211220T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Ben Ohayon\, Title: TBA URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-ben-ohayon-title-tba/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract:TBA\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:4keuie44dlurm5mr6hunnk1qup@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: TBA\nAbstract:TBA DTSTART;TZID=Asia/Jerusalem:20211221T160000 DTEND;TZID=Asia/Jerusalem:20211221T170000 SEQUENCE:0 SUMMARY:Gregory Tarnopolsky URL:https://phsites.technion.ac.il/strings/event/gregory-tarnopolsky/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title: TBA

\n END:VEVENT BEGIN:VEVENT UID:2lpu331p69g2qig0i20grp1ol8@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211227T113000 DTEND;TZID=Asia/Jerusalem:20211227T130000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Shaouly Bar Shalom\, Title: TBA URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-shaouly-bar-shalom-title-tba-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract:TBA\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:0ku1b77qk9f25q8tmfoh6ed03o@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:TBA\nAbstract: TBA DTSTART;TZID=Asia/Jerusalem:20211228T103000 DTEND;TZID=Asia/Jerusalem:20211228T113000 SEQUENCE:0 SUMMARY:Avner Karasik URL:https://phsites.technion.ac.il/strings/event/avner-karasik/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title:TBA

\n END:VEVENT BEGIN:VEVENT UID:1vbmf67epgo4vko9kbjgb2jln3@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:TBA\nAbstract:TBA DTSTART;TZID=Asia/Jerusalem:20211228T120000 DTEND;TZID=Asia/Jerusalem:20211228T130000 SEQUENCE:0 SUMMARY:Amihay Hanany URL:https://phsites.technion.ac.il/strings/event/amihay-hanany/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract: TBA\\n\\n Title:TBA

\n END:VEVENT BEGIN:VEVENT UID:kvell6cg9di744ar80f492al7g@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20211228T133000 DTEND;TZID=Asia/Jerusalem:20211228T143000 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Nadav Priel\, Title: TBA URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-nadav-priel-title-tba/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract:TBA\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:19o54hhpq3v3qvs18t8qu1dsfl@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title: Some aspects of line defects in d dimensions\nAbstract: We consider renormalization group flows on line defects in d dimensions. W e define a “defect entropy” and argue that it decreases monotonically duri ng RG flows. We apply this result to line defects which appear in condense d matter and high energy physics\, including magnetic (SPT) defects\, loca lized field defects\, and Wilson loops. In some of these cases we make som e new experimental predictions and in the case of Wilson lines we make som e comparisons with localization and holography. DTSTART;TZID=Asia/Jerusalem:20220104T103000 DTEND;TZID=Asia/Jerusalem:20220104T113000 SEQUENCE:0 SUMMARY:Zohar Komargodski URL:https://phsites.technion.ac.il/strings/event/zohar-komargodski-4/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n \n

Some aspects of line defects in d dimensionsTitle:\n END:VEVENT BEGIN:VEVENT UID:5it9ufm3mljv8sdnolf03gia4i@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:TBA\nAbstract:TBA DTSTART;TZID=Asia/Jerusalem:20220104T120000 DTEND;TZID=Asia/Jerusalem:20220104T130000 SEQUENCE:0 SUMMARY:Behzat Ergun URL:https://phsites.technion.ac.il/strings/event/behzat-ergun/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

We consider renormalization group flows on line defects in d di mensions. We define a “defect entropy” and argue that it decreases monoton ically during RG flows. We apply this result to line defects which appear in condensed matter and high energy physics\, including magnetic (SPT) def ects\, localized field defects\, and Wilson loops. In some of these cases we make some new experimental predictions and in the case of Wilson lines we make some comparisons with localization and holography.Abstrac t:\\n\\n Title:TBA

\n END:VEVENT BEGIN:VEVENT UID:k9a0jueci61ri1vhcq97b14si0@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Local seminar CONTACT: DESCRIPTION:A DTSTART;TZID=Asia/Jerusalem:20220110T113000 DTEND;TZID=Asia/Jerusalem:20220110T124500 LOCATION:Lidow Nathan Rosen (300) SEQUENCE:0 SUMMARY:High Energy Physics Seminar\, Ran Itay\, Title: MicroBooNE’s new re sults from the deep-learning-based 2-body CCQE search for an electron neu trino excess URL:https://phsites.technion.ac.il/strings/event/high-energy-physics-semina r-ran-itay-title-microboones-new-results-from-the-deep-learning-based-2-bo dy-ccqe-search-for-an-electron-neutrino-excess-2/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract:TBA\\n\\n A

\n END:VEVENT BEGIN:VEVENT UID:3kuq9b42nicikfh28e1sh7v1gj@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:TBA\nAbstract: TBA DTSTART;TZID=Asia/Jerusalem:20220125T160000 DTEND;TZID=Asia/Jerusalem:20220125T170000 SEQUENCE:0 SUMMARY:Justin Kaidi URL:https://phsites.technion.ac.il/strings/event/justin-kaidi/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n\\n\\n Title:TBA

\n END:VEVENT BEGIN:VEVENT UID:0np8c5h85b6n7n7sfsei7ciusa@google.com DTSTAMP:20211203T041325Z CATEGORIES;LANGUAGE=en-US:Neve Shalom CONTACT: DESCRIPTION:Title:TBA\nAbstract: TBA DTSTART;TZID=Asia/Jerusalem:20220322T160000 DTEND;TZID=Asia/Jerusalem:20220322T170000 SEQUENCE:0 SUMMARY:Horacio Casini URL:https://phsites.technion.ac.il/strings/event/horacio-casini/ X-ALT-DESC;FMTTYPE=text/html:\\n\\n\\n

\nAbstract: TBA\\n\\n Title:TBA

\n END:VEVENT END:VCALENDAR

\nAbstract: TBA