| Autor: |
Keeling, J., Bhaseen, M. J., Simons, B. D. |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. Lett. 112, 143002 (2014) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevLett.112.143002 |
| Popis: |
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. |
| Databáze: |
arXiv |
| Externí odkaz: |
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