Journal
PHYSICAL REVIEW A
Volume 81, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.81.043639
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Funding
- National Scientific Fund of Hungary [NF68736, T077629]
- National Office for Research and Technology [ERC_HU_09 OPTOMECH]
- MEC [FIS2008-00784, 2010]
- ERC
- EU
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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.
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