The Interference Effect of a Bose-Einstein Condensate in a Ring-Shaped Trap

被引：2
作者：
Cao Li-Juan [1 ,2 ]
Liu Shu-Juan [1 ]
Lu Bao-Long [1 ]
机构：
[1] Chinese Acad Sci, Wuhan Inst Phys & Math, Key Lab Atom Frequency Stand, Wuhan 430071, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2012年 / 29卷 / 05期
基金：
中国国家自然科学基金;
关键词：
GASES;
D O I：
10.1088/0256-307X/29/5/050305
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have studied the interference effect of a Bose-Einstein condensate expanding in a ring-shaped trap. The dynamic process of the condensate is analyzed based on the Gross-Pitaevskii equation. Our numerical results show that a petal-like interference pattern is formed during expansion within the ring-shaped trap. The petal number depends on the evolution time, which can be well explained by the interference of two flows of the condensate.
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页数：3
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