Momentum distribution and correlation function of quasicondensates in elongated traps

被引：57

作者：

Gerbier, F ^{[1
]}

Thywissen, JH ^{[1
]}

Richard, S ^{[1
]}

Hugbart, M ^{[1
]}

Bouyer, P ^{[1
]}

Aspect, A ^{[1
]}

机构：

[1] Inst Opt, Lab Charles Fabry, CNRS, UMRA 8501, F-91403 Orsay, France

来源：

PHYSICAL REVIEW A | 2003年 / 67卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.67.051602

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We calculate the spatial correlation function and momentum distribution of a phase-fluctuating, elongated three-dimensional condensate in a trap and in free expansion. We take the inhomogeneous density profile into account via a local-density approximation. We find an almost Lorentzian momentum distribution, in stark contrast with a Heisenberg-limited Thomas-Fermi condensate.

引用

页数：4

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