Bose-Einstein condensation in anisotropic harmonic traps

被引：62

作者：

Haugset, T

Haugerud, H

Andersen, JO

机构：

[1] Department of Physics, University of Oslo, Oslo, N-0316, P.O. Box 1048, Blindern

来源：

PHYSICAL REVIEW A | 1997年 / 55卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.55.2922

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the thermodynamic behavior of an ideal gas of bosons trapped in a three-dimensional anisotropic harmonic-oscillator potential. The condensate fraction as well as the specific heat is calculated using the Euler-Maclaurin approximation. For a finite number of particles there is no phase transition, but there is a well-defined temperature al which the condensation starts. We also consider condensation in lower dimensions, and, for one-dimensional systems, we discuss the dependence of the condensate fraction and heat capacity on the ensemble used.

引用

页码：2922 / 2929

页数：8

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