Driven Bose-Hubbard dimer under nonlocal dissipation: A bistable time crystal
Quantum Physics
2019-08-21 v3
Abstract
We investigate the critical behavior of the open coherently-driven Bose-Hubbard dimer under nonlocal dissipation. A conserved quantity arises from the nonlocal nature of the dissipation, rendering the dimer multistable. In the weak-coupling semiclassical limit, the displayed criticality takes the form of amplitude bistability and breaking of spatial and temporal symmetries. A period-bistable time crystal is formed, consisting of Josephson-like oscillations. Mean-field dynamics and quantum trajectories complement the spectral analysis of the Liouvillian in the approach to the semiclassical limit.
Cite
@article{arxiv.1901.04438,
title = {Driven Bose-Hubbard dimer under nonlocal dissipation: A bistable time crystal},
author = {Cristóbal Lledó and Themistoklis Mavrogordatos and Marzena Szymańska},
journal= {arXiv preprint arXiv:1901.04438},
year = {2019}
}
Comments
Accepted in PRB. 6 pages, 2 figures. Supplemental material included. Comments are welcome