Quantum Limits of Stochastic Cooling of a Bosonic Gas

Ivanov, D.; Wallentowitz, S.; Walmsley, I. A.

Quantum Limits of Stochastic Cooling of a Bosonic Gas

Authors

Ivanov, D.

Wallentowitz, S.

Walmsley, I. A.

Description

The quantum limits of stochastic cooling of trapped atoms are studied. The energy subtraction due to the applied feedback is shown to contain an additional noise term due to atom-number fluctuations in the feedback region. This novel effect is shown to dominate the cooling efficiency near the condensation point. Furthermore, we show first results that indicate that Bose--Einstein condensation could be reached via stochastic cooling.
5 pages, 3 figures, to appear in Phys. Rev. A