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arXiv 0905.4783cond-mat.quant-gas
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光晶格中玻色气体的临界温度

Critical temperature of a Bose gas in an optical lattice

D. Baillie, P. B. Blakie

摘要:

本文提出了基于平均场描述的复合谐振格点势中玻色气体的临界温度理论。我们开发的理想气体的临界温度的实用表达式,由于相互作用,有限尺寸效应,和激发带的占用和校正。我们比较我们的表达式的数值计算,并找到了很好的协议在一个很宽的参数制度。

英文摘要:

We present theory for the critical temperature of a Bose gas in a combined harmonic lattice potential based on a mean-field description of the system. We develop practical expressions for the ideal-gas critical temperature, and corrections due to interactions, the finite-size effect, and the occupation of excited bands. We compare our expressions to numerical calculations and find excellent agreement over a wide parameter regime.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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