Annihilation and recurrence of vortex-antivortex pairs in two-component Bose-Einstein condensates

被引：1
|
作者：
Han, Junsik [1 ]
Tsubota, Makoto [1 ,2 ,3 ]
机构：
[1] Osaka City Univ, Dept Phys, Sumiyoshi Ku, 3-3-138 Sugimoto, Osaka 5588585, Japan
[2] Osaka City Univ, Adv Res Inst Nat Sci & Technol, Sumiyoshi Ku, 3-3-138 Sugimoto, Osaka 5588585, Japan
[3] Osaka City Univ, Nambu Yoichiro Inst Theoret & Expt Phys, Sumiyoshi Ku, 3-3-138 Sugimoto, Osaka 5588585, Japan
来源：
PHYSICAL REVIEW A | 2021年 / 103卷 / 05期
关键词：
TURBULENCE;
D O I：
10.1103/PhysRevA.103.053313
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The annihilation of vortex-antivortex pairs is a key event in two-dimensional Bose-Einstein condensates (BECs). It is known that dissipation or a catalyst vortex is required for the annihilation of the pairs in one-component BECs. We numerically confirmed in two-component BECs that the pairs can be annihilated even without any dissipation or catalyst vortices when the intercomponent interaction is strong. In addition, the pair is recreated alternately in two components under certain conditions, which we call the recurrence.
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页数：8
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