Non-equilibrium phases of Fermi gas inside a cavity with imbalanced pumping

Abstract

In this work, we investigate the non-equilibrium dynamics of one-dimensional spinless fermions loaded in a cavity with imbalanced pumping lasers. Our study is motivated by previous work on a similar setup using bosons, and we explore the unique properties of fermionic systems in this context. By considering the imbalance in the pumping, we find that the system exhibits multiple superradiant steady phases and an unstable phase. Furthermore, by making use of the hysteresis structure of superradiant phases, we propose a unidirectional topological pumping. Unlike the usual topological pumping in which the driving protocol breaks time reversal symmetry, the driving protocol can be time reversal invariant in our proposal.

7 pages, 12 figures

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Cited by in corpus (7)

• Realizing limit cycles in dissipative bosonic systems
• Fluctuation-Induced Bistability of Fermionic Atoms Coupled to a Dissipative Cavity
• Kibble-Zurek behavior in a topological phase transition with a quadratic band crossing
• Phase transition, phase separation and mode softening of a two-component Bose-Einstein condensate in an optical cavity
• Dynamics and fragmentation of bosons in an optical lattice inside a cavity using Wannier and position bases
• Tuning Density and Spin Ordering of Degenerate Fermi Gases in an Optical Cavity
• Pauli crystal superradiance