Formation and dynamics of vortices in a Bose-Einstein condensate with a moving impenetrable disk-shaped potential

doi:10.1088/1054-660X/26/10/105502

NTSC-IR

	Formation and dynamics of vortices in a Bose-Einstein condensate with a moving impenetrable disk-shaped potential
	Chen, Guang-Ping 1,2,3; Dong, Biao 1,2; Wang, Lin-Xue 1,2; Xie, Zheng-Wei 4; Zhang, Shou-Gang 1
	2016-10-01
发表期刊	LASER PHYSICS
ISSN	1054-660X
卷号	26 期号:10 页码:5
摘要	We consider a quasi-two-dimensional Bose-Einstein condensate with a moving impenetrable disk-shaped potential. By performing direct numerical simulations, we investigate the formation and dynamics of the vortices in the wake as a function of the moving velocity and the radius of the potential. For moderate moving velocity, we observe the formation of a bound vortex pair in the wake of the potential. Its shedding period and associated patterns depend on the radius of the potential, showing V-shaped, periodic, or complex wakes. More interestingly, at high velocity both the vortex pair and vortex dipole can be formed simultaneously. Furthermore, the activation time for vortex formation is investigated for different velocities. We also give an experimental protocol to observe these phenomena in future experiments.
关键词	Bose-Einstein condensate impenetrable disk-shaped potential vortex dipole
资助者	NMFSEID ; NMFSEID ; key project fund of the CAS 'Light of West China' program ; key project fund of the CAS 'Light of West China' program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Sichuan Province Education Department Key Natural Science Fund ; Sichuan Province Education Department Key Natural Science Fund ; NMFSEID ; NMFSEID ; key project fund of the CAS 'Light of West China' program ; key project fund of the CAS 'Light of West China' program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Sichuan Province Education Department Key Natural Science Fund ; Sichuan Province Education Department Key Natural Science Fund ; NMFSEID ; NMFSEID ; key project fund of the CAS 'Light of West China' program ; key project fund of the CAS 'Light of West China' program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Sichuan Province Education Department Key Natural Science Fund ; Sichuan Province Education Department Key Natural Science Fund ; NMFSEID ; NMFSEID ; key project fund of the CAS 'Light of West China' program ; key project fund of the CAS 'Light of West China' program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Sichuan Province Education Department Key Natural Science Fund ; Sichuan Province Education Department Key Natural Science Fund
DOI	10.1088/1054-660X/26/10/105502
关键词[WOS]	SOLITONS
语种	英语
资助项目	NMFSEID[61127901] ; key project fund of the CAS 'Light of West China' program[2012ZD02] ; Youth Innovation Promotion Association of CAS[2015334] ; Sichuan Province Education Department Key Natural Science Fund[13ZA0149] ; Sichuan Province Education Department Key Natural Science Fund[16ZA0355]
资助者	NMFSEID ; NMFSEID ; key project fund of the CAS 'Light of West China' program ; key project fund of the CAS 'Light of West China' program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Sichuan Province Education Department Key Natural Science Fund ; Sichuan Province Education Department Key Natural Science Fund ; NMFSEID ; NMFSEID ; key project fund of the CAS 'Light of West China' program ; key project fund of the CAS 'Light of West China' program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Sichuan Province Education Department Key Natural Science Fund ; Sichuan Province Education Department Key Natural Science Fund ; NMFSEID ; NMFSEID ; key project fund of the CAS 'Light of West China' program ; key project fund of the CAS 'Light of West China' program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Sichuan Province Education Department Key Natural Science Fund ; Sichuan Province Education Department Key Natural Science Fund ; NMFSEID ; NMFSEID ; key project fund of the CAS 'Light of West China' program ; key project fund of the CAS 'Light of West China' program ; Youth Innovation Promotion Association of CAS ; Youth Innovation Promotion Association of CAS ; Sichuan Province Education Department Key Natural Science Fund ; Sichuan Province Education Department Key Natural Science Fund
WOS研究方向	Optics ; Physics
WOS类目	Optics ; Physics, Applied
WOS记录号	WOS:000384216300001
出版者	IOP PUBLISHING LTD
引用统计
文献类型	期刊论文
条目标识符	http://210.72.145.45/handle/361003/11299
专题	中国科学院国家授时中心
通讯作者	Chen, Guang-Ping
作者单位	1.Chinese Acad Sci, Natl Time Serv Ctr, Key Lab Time & Frequency Primary Stand, Xian 710600, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Sichuan Univ Art & Sci, Sch Phys & Mech Tron Engn, Dazhou 635000, Peoples R China 4.Sichuan Normal Univ, Coll Phys & Elect Engn, Chengdu 610066, Peoples R China
推荐引用方式 GB/T 7714	Chen, Guang-Ping,Dong, Biao,Wang, Lin-Xue,et al. Formation and dynamics of vortices in a Bose-Einstein condensate with a moving impenetrable disk-shaped potential[J]. LASER PHYSICS,2016,26(10):5.
APA	Chen, Guang-Ping,Dong, Biao,Wang, Lin-Xue,Xie, Zheng-Wei,&Zhang, Shou-Gang.(2016).Formation and dynamics of vortices in a Bose-Einstein condensate with a moving impenetrable disk-shaped potential.LASER PHYSICS,26(10),5.
MLA	Chen, Guang-Ping,et al."Formation and dynamics of vortices in a Bose-Einstein condensate with a moving impenetrable disk-shaped potential".LASER PHYSICS 26.10(2016):5.