Bose-Condensed Gases in a 1D Optical Lattice at Finite Temperatures

被引：0

作者：

Emiko Arahata

Tetsuro Nikuni

机构：

[1] Tokyo University of Science,Department Physics, Faculty of Science

来源：

Journal of Low Temperature Physics | 2007年 / 148卷

关键词：

05.70.Ln; 05.70.Jk; 64;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We study equilibrium properties of Bose-Condensed gases in a one-dimensional (1D) optical lattice at finite temperatures. We assume that an additional harmonic confinement is highly anisotropic, in which the confinement in the radial directions is much tighter than in the axial direction. We derive a quasi-1D model of the Gross-Pitaeavskii equation and the Bogoliubov equations, and numerically solve these coupled equations to obtain the condensate fraction as a function of the temperature. We also discuss the importance of the radial excitations in the thermodynamic properties at finite temperatures.

引用

页码：345 / 349

页数：4

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