Quantum noise of a Bose-Einstein condensate in an optical cavity, correlations, and entanglement

G. Szirmai, D. Nagy, P. Domokos

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

A Bose-Einstein condensate of ultracold atoms inside the field of a laser-driven optical cavity exhibits dispersive optical bistability. We describe this system by using mean-field approximation and by analyzing the correlation functions of the linearized quantum fluctuations around the mean-field solution. The entanglement and the statistics of the atom-field quadratures are given in the stationary state. It is shown that the mean-field solution, that is, the Bose-Einstein condensate, is robust against entanglement generation for most of the phase diagram.

Original languageEnglish
Article number043639
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume81
Issue number4
DOIs
Publication statusPublished - Apr 29 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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