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题名: Three-dimensional dimeron as a stable topological object
作者: Liu, YK;  Yang, SJ
刊名: PHYSICAL REVIEW A
出版日期: 2015
卷号: 91, 期号:4, 页码:43616
学科分类: Optics ;  Physics
DOI: http://dx.doi.org/10.1103/PhysRevA.91.043616
通讯作者: Yang, SJ (reprint author), Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
文章类型: Article
英文摘要: Searching for novel topological objects is always an intriguing task for scientists in various fields. We study a three-dimensional (3D) topological structure called a 3D dimeron in trapped two-component Bose-Einstein condensates. The 3D dimeron differs from the conventional 3D skyrmion for the condensates hosting two interlocked vortex rings. We demonstrate that the vortex rings are connected by a singular string and the complexity constitutes a vortex molecule. The stability of the 3D dimeron is examined in two different models using the imaginary time evolution method. We find that the stable 3D dimeron can be naturally generated from a vortex-free Gaussian wave packet incorporating a synthetic non-Abelian gauge potential into the condensates.
类目[WOS]: Optics ;  Physics, Atomic, Molecular & Chemical
关键词[WOS]: BOSE-EINSTEIN CONDENSATE ;  CLASSICAL FIELD-THEORY ;  VORTEX RINGS ;  KNOTS ;  DYNAMICS ;  SOLITONS
收录类别: SCI
项目资助者: NSF of China [11374036] ;  National Basic Research Program of China (973 Program) [2012CB821403]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21030
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Liu, YK,Yang, SJ. Three-dimensional dimeron as a stable topological object[J]. PHYSICAL REVIEW A,2015,91(4):43616.
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