Relative phase fluctuations of two coupled one-dimensional condensates

被引：36
|
作者：
Whitlock, NK [1 ]
Bouchoule, I
机构：
[1] Univ Strathclyde, Dept Phys, Glasgow G4 0NG, Lanark, Scotland
[2] Inst Opt, F-91403 Orsay, France
来源：
PHYSICAL REVIEW A | 2003年 / 68卷 / 05期
关键词：
D O I：
10.1103/PhysRevA.68.053609
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the relative phase fluctuations of two one-dimensional condensates coupled along their whole extension with a local single-atom interaction. The thermal equilibrium is defined by the competition between independent longitudinal thermally excited phase fluctuations and the coupling between the condensates which locally favors identical phase. We compute the relative phase fluctuations and their correlation length as a function of the temperature and the strength of the coupling.
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页数：5
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