Vortex pair excitation in a Bose-Einstein condensate by moving potential barriers

被引：1
|
作者：
Mironov V.A. [1 ]
Smirnov L.A. [1 ]
机构：
[1] Institute of Applied Physics, Russian Academy of Sciences, Nizhni Novgorod 603950
来源：
Bulletin of the Russian Academy of Sciences: Physics | 2009年 / 73卷 / 12期
关键词：
Vortex; Mach Number; Potential Barrier; Vortex Pair; Einstein Condensate;
D O I：
10.3103/S1062873809120314
中图分类号：
学科分类号：
摘要：
The subsonic motion regime of a potential barrier in a Bose-Einstein condensate is considered. It is characterized by a critical velocity above which vortex pairs appear with opposite topological charges ("vortex- antivortex" pairs). The theoretical picture developed is confirmed by the results of numerical simulations within the framework of the Gross-Pitaevskii equation. © 2009 Allerton Press, Inc.
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收藏
页码：1684 / 1688
页数：4
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