期刊
OPTICS COMMUNICATIONS
卷 283, 期 5, 页码 671-675出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2009.10.080
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资金
- Polish Government Research Funds
In this paper we combine the classical fields method with the Monte Carlo approach for description of statistical properties of a Bose-Einstein condensate. We show that the canonical ensemble of interacting classical fields can be generated using Metropolis algorithm. We obtain a probability distribution of the condensate occupation for the weakly interacting Bose gas at low temperatures and pay a particular attention to the two momenta of this distribution: mean and variance of the condensate occupation. (C) 2009 Elsevier B.V. All rights reserved.
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