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arXiv · 1001.1818

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

G. Szirmai·D. Nagy·P. Domokos
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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, i.e. the Bose-Einstein condensate is robust against entanglement generation for most part of the phase diagram.

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G. Szirmai, D. Nagy, P. Domokos. 2010-03-12. Quantum noise of a Bose-Einstein condensate in an optical cavity, correlations and entanglement. https://doi.org/10.1103/physreva.81.043639

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