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	Formation and dynamics of vortices in a bose-einstein condensate with a moving impenetrable disk-shaped potential
	Chen, Guang-Ping1,2,3; Dong, Biao1,2; Wang, Lin-Xue1,2; Xie, Zheng-Wei4; Zhang, Shou-Gang1
刊名	Laser physics
	2016-10-01
卷号	26期号:10页码:5
关键词	Bose-einstein condensate Impenetrable disk-shaped potential Vortex dipole
ISSN号	1054-660X
DOI	10.1088/1054-660x/26/10/105502
通讯作者	Chen, guang-ping(chengp205@126.com)
英文摘要	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.
WOS关键词	SOLITONS
WOS研究方向	Optics ; Physics
WOS类目	Optics ; Physics, Applied
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000384216300001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2375831
专题	中国科学院大学
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.

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