Monte Carlo method, classical fields and Bose statistics

被引：22

作者：

Witkowska, Emilia ^{[1
]}

Gajda, Mariusz ^{[1
,2
]}

Rzazewski, Kazimierz ^{[2
,3
]}

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[2] Cardinal Stefan Wyszynski Univ, Fac Math & Sci, Warsaw, Poland

[3] Polish Acad Sci, Ctr Theoret Phys, PL-02668 Warsaw, Poland

来源：

OPTICS COMMUNICATIONS | 2010年 / 283卷 / 05期

关键词：

EINSTEIN CONDENSATE; FLUCTUATIONS; GASES; IDEAL; APPROXIMATION; TEMPERATURE; ENSEMBLE;

D O I：

10.1016/j.optcom.2009.10.080

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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.

引用

页码：671 / 675

页数：5

共 32 条

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