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arXiv · 1901.04438

Driven Bose-Hubbard dimer under nonlocal dissipation: A bistable time crystal

Cristóbal Lledó·Themistoklis Mavrogordatos·Marzena Szymańska
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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.

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Cristóbal Lledó, Themistoklis Mavrogordatos, Marzena Szymańska. 2019-08-13. Driven Bose-Hubbard dimer under nonlocal dissipation: A bistable time crystal. https://doi.org/10.1103/physrevb.100.054303

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