Excitation spectroscopy of vortex states in dilute Bose-Einstein condensed gases

被引：126
作者：
Dodd, RJ
Burnett, K
Edwards, M
Clark, CW
机构：
[1] UNIV OXFORD, DEPT PHYS, CLARENDON LAB, OXFORD OX1 3PU, ENGLAND
[2] GEORGIA SO UNIV, DEPT PHYS, STATESBORO, GA 30460 USA
[3] US DEPT COMMERCE, NIST, DIV ELECTRON & OPT PHYS, GAITHERSBURG, MD 20899 USA
[4] US DEPT COMMERCE, NIST, PHYS LAB, GAITHERSBURG, MD 20899 USA
来源：
PHYSICAL REVIEW A | 1997年 / 56卷 / 01期
关键词：
D O I：
10.1103/PhysRevA.56.587
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We apply linear-response analysis to the Gross-Pitaevskii equation to obtain the excitation frequencies of a Bose-Einstein condensate in a vortex state, and apply it to a system of rubidium atoms confined in a time-averaged orbiting potential trap. The excitation frequencies of a vortex differ significantly from those of the ground state, and may therefore be used to obtain a spectroscopic signature of the presence of a vortex state.
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收藏
页码：587 / 590
页数：4
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