Fermionic superradiance in a transversely pumped optical cavity

Following the experimental realization of Dicke superradiance in Bose gases coupled to cavity light fields, we investigate the behavior of ultracold fermions in a transversely pumped cavity. We focus on the equilibrium phase diagram of spinless fermions coupled to a single cavity mode and establish...

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Bibliographic Details
Published inPhysical review letters Vol. 112; no. 14; p. 143002
Main Authors Keeling, J, Bhaseen, M J, Simons, B D
Format Journal Article
LanguageEnglish
Published United States 11.04.2014
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Summary:Following the experimental realization of Dicke superradiance in Bose gases coupled to cavity light fields, we investigate the behavior of ultracold 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.
ISSN:1079-7114
DOI:10.1103/PhysRevLett.112.143002