Title | Selective decoupling and Hamiltonian engineering in dipolar spin networks |
Publication Type | Journal Article |
Year of Publication | 2019 |
Authors | Ajoy A., Bissbort U., Poletti D., Cappellaro P. |
Journal | Physics Review Letters |
Volume | 122 |
Issue | 1-11 |
Date Published | 01/2019 |
Abstract | We present a protocol to selectively decouple, recouple, and engineer effective interactions in mesoscopic dipolar spin networks. In particular, we develop a versatile protocol that relies upon magic angle spinning to perform Hamiltonian engineering. By using global control fields in conjunction with a local actuator, such as a diamond nitrogen vacancy center located in the vicinity of a nuclear spin network, both global and local control over the effective couplings can be achieved. We show that the resulting effective Hamiltonian can be well understood within a simple, intuitive geometric picture, and corroborate its validity by performing exact numerical simulations in few-body systems. Applications of our method are in the emerging fields of two-dimensional room temperature quantum simulators in diamond platforms, as well as in molecular magnet systems. |
URL | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.013205 |
DOI | 10.1103/PhysRevLett.122.013205 |