Strong evaporative cooling of a trapped cesium gas

被引:50
作者
Guery-Odelin, D [1 ]
Soding, J [1 ]
Desbiolles, P [1 ]
Dalibard, J [1 ]
机构
[1] Univ Paris 06, ENS, Unite Rech, Lab Kastler Brossel,CNRS, F-75005 Paris, France
来源
OPTICS EXPRESS | 1998年 / 2卷 / 08期
关键词
D O I
10.1364/OE.2.000323
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Using forced radio-frequency evaporation, we have cooled cesium atoms prepared in the sublevel F = -m(F) = 3 and confined in a magnetic trap. At the end of the evaporation ramp, the sample contains ,similar to 7000 atoms at 80 nK, corresponding to a phase space density 3x10(-2). A molecular dynamics approach, including the effect of gravity, gives a good account for the experimental data, assuming a scattering length larger than 300 Angstrom. (C)1998 Optical Society of America
引用
收藏
页码:323 / 329
页数:7
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