Critical temperature of a Bose gas in an optical lattice

被引：10

作者：

Baillie, D. ^{[1
]}

Blakie, P. B. ^{[1
]}

机构：

[1] Univ Otago, Dept Phys, Jack Dodd Ctr Quantum Technol, Dunedin 9016, New Zealand

来源：

PHYSICAL REVIEW A | 2009年 / 80卷 / 03期

关键词：

EINSTEIN CONDENSATION; PHASE-TRANSITION; ATOMS;

D O I：

10.1103/PhysRevA.80.031603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

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.

引用

页数：4

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