Quasicontinuous atom laser in the presence of gravity

被引：51

作者：

Gerbier, F ^{[1
]}

Bouyer, P ^{[1
]}

Aspect, A ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.86.4729

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyze the extraction from a trapped Bose-Einstein condensate to a nontrapping state of a coherent atomic beam and its subsequent fall, at T = 0 K. Our treatment fully takes gravity into account but neglects the mean-field potential exerted on the free falling beam by the trapped atoms. We derive analytical expressions for the output rate and the output mode of the quasicontinuous "atom laser." Comparison with experimental data of Bloch rt al. [Phys. Rev. Lett. 82, 3008 (1999)] is satisfactory.

引用

页码：4729 / 4732

页数：4

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