Coherence length of an elongated condensate -: A study by matter-wave interferometry

被引：31

作者：

Hugbart, M ^{[1
]}

Retter, JA

Gerbier, F

Verón, AF

Richard, S

Thywissen, JH

Clément, D

Bouyer, P

Aspect, A

机构：

[1] CNRS, UMR8501, Inst Opt, Lab Charles Fabry, F-91403 Orsay, France

[2] Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany

[3] THALES Res & Technol, F-91404 Orsay, France

[4] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

来源：

EUROPEAN PHYSICAL JOURNAL D | 2005年 / 35卷 / 01期

关键词：

D O I：

10.1140/epjd/e2005-00056-2

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We measure the spatial correlation function of Bose-Einstein condensates in the cross-over region between phase-coherent and strongly phase-fluctuating condensates. We observe the continuous path from a Gaussian-like shape to an exponential-like shape characteristic of one-dimensional phase-fluctuations. The width of the spatial correlation function as a function of the temperature shows that the condensate coherence length undergoes no sharp transition between these two regimes.

引用

页码：155 / 163

页数：9

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