Eur. Phys. J. D (2013) 67: 198
https://doi.org/10.1140/epjd/e2013-40042-5

Regular Article

Quantum degenerate Fermi gas entanglement in optomechanics

Department of Electronics, Quaid-i-Azam University, IIIrd Avenue, 45320 Islamabad, Pakistan

^a e-mail: asjadqau@yahoo.com

Received: 24 January 2013
Received in final form: 10 June 2013
Published online: 25 September 2013

Abstract

We explain the steady-state entanglement of a quantum degenerate Fermi gas with a light field inside a Fabry-Perot cavity. The logarithmic negativity, from the covariance matrix formalism in a unified framework, shows that the bi-stability parameter and the effective detuning depend explicitly on the behavior of the entanglement. Numerical experiments reveal the sensitivity of the entanglement to experimentally controlled parameters such as, the mass of the atoms, the pump rate of the cavity, the effective detuning, and the bi-stability parameters.