Fermionic Superradiance in a Transversely Pumped Optical Cavity

J. Keeling; M. J. Bhaseen; B. D. Simons

doi:10.1103/physrevlett.112.143002

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arXiv · 1309.2464

Fermionic Superradiance in a Transversely Pumped Optical Cavity

J. Keeling·M. J. Bhaseen·B. D. Simons

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Abstract

Following the experimental realization of Dicke superradiance in Bose gases coupled to cavity light fields, we investigate the behavior of ultra cold fermions in a transversely pumped cavity. We focus on the equilibrium phase diagram of spinless fermions coupled to a single cavity mode and establish a zero temperature transition to a superradiant state. In contrast to the bosonic case, Pauli blocking leads to lattice commensuration effects that influence self-organization in the cavity light field. This includes a sequence of discontinuous transitions with increasing atomic density and tricritical superradiance. We discuss the implications for experiment.

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J. Keeling, M. J. Bhaseen, B. D. Simons. 2013-09-10. Fermionic Superradiance in a Transversely Pumped Optical Cavity. https://doi.org/10.1103/physrevlett.112.143002

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