Giant spin relaxation of an ultracold cesium gas

被引：96
|
作者：
Soding, J [1 ]
Guery-Odelin, D [1 ]
Desbiolles, P [1 ]
Ferrari, G [1 ]
Dalibard, J [1 ]
机构：
[1] Univ Paris 06, Lab Kastler Brossel, Ecole Normale Super, CNRS,Unite Rech, F-75231 Paris 05, France
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 09期
关键词：
D O I：
10.1103/PhysRevLett.80.1869
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have measured the rate of inelastic collisions in a cloud of doubly polarized ground-state cesium atoms (F = m(F) = 4) confined in a magnetic trap for temperatures T between 8 and 70 mu K. We find a two-body rate coefficient varying as T-0.63. At 8 mu K it reaches 4 X 10(-12) cm(3) s(-1) which is 3 orders of magnitude larger than predicted, ruling out a Bose-Einstein condensation of Cs in this internal state.
引用
收藏
页码：1869 / 1872
页数：4
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