Resonant light enhances phase coherence in a cavity QED simulator of fermionic superfluidity
Cavity QED experiments are natural hosts for nonequilibrium phases of matter supported by photon-mediated interactions. In this work, we consider a cavity QED simulation of the BCS model of superfluidity, by studying regimes where the cavity photons act as dynamical degrees of freedom instead of mere mediators of the interaction via virtual processes. We find an enhancement of long time coherence following a quench whenever the cavity frequency is tuned into resonance with the atoms.
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Phys. Rev. Research
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