Three-dimensional dimeron as a stable topological object

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	Three-dimensional dimeron as a stable topological object
	Liu, YK; Yang, SJ
刊名	PHYSICAL REVIEW A
	2015
卷号	91 期号:4 页码:43616
通讯作者	Yang, SJ (reprint author), Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
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.
学科主题	Optics ; Physics
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
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21030]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Liu, YK,Yang, SJ. Three-dimensional dimeron as a stable topological object[J]. PHYSICAL REVIEW A,2015,91(4):43616.
APA	Liu, YK,&Yang, SJ.(2015).Three-dimensional dimeron as a stable topological object.PHYSICAL REVIEW A,91(4),43616.
MLA	Liu, YK,et al."Three-dimensional dimeron as a stable topological object".PHYSICAL REVIEW A 91.4(2015):43616.