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arxiv: 0809.1984 · v2 · submitted 2008-09-11 · 🪐 quant-ph

Excess noise depletion of a Bose-Einstein condensate in an optical cavity

classification 🪐 quant-ph
keywords excessnoisebose-einsteincavitycondensatedepletionopticalamounts
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Quantum fluctuations of a cavity field coupled into the motion of ultracold bosons can be strongly amplified by a mechanism analogous to the Petermann excess noise factor in lasers with unstable cavities. For a Bose-Einstein condensate in a stable optical resonator, the excess noise effect amounts to a significant depletion on long timescales.

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