Generation and evolution of vortex-antivortex pairs in Bose-Einstein condensates

被引：0
|
作者：
Martikainen, JP [1 ]
Suominen, KA
Santos, L
Schulte, T
Sanpera, A
机构：
[1] Helsinki Inst Phys, PL 64, FIN-00014 Helsinki, Finland
[2] Univ Turku, Dept Appl Phys, FIN-20014 Turun, Finland
[3] Leibniz Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany
来源：
PHYSICAL REVIEW A | 2001年 / 64卷 / 06期
关键词：
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a method for generating and controlling a spatially separated vortex-anti vortex pair in a Bose-Einstein condensate trapped in a toroidal potential. Our simulations of the time-dependent Gross-Pitaevskii equation show that in toroidal condensates vortex dynamics are different from the dynamics in the homogeneous case. Our numerical results agree well with analytical calculations using the image method. Our proposal offers an effective example of coherent generation and control of vortex dynamics in atomic condensates.
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页数：5
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