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题名: Generating ring dark solitons in an evolving Bose-Einstein condensate
作者: Yang, Shi-Jie ;  Wu, Quan-Sheng ;  Zhang, Sheng-Nan ;  Feng, Shiping ;  Guo, Wenan ;  Wen, Yu-Chuan ;  Yu, Yue
刊名: PHYSICAL REVIEW A
出版日期: 2007
卷号: 76, 期号:6, 页码:-
关键词: DYNAMICS ;  EQUATION ;  WAVES ;  ATOMS ;  TRAP ;  GAS
学科分类: Physics
通讯作者: Yang, SJ , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
部门归属: [Yang, SJ; Wu, QS; Zhang, SN; Feng, S; Guo, W] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China; [Wen, YC] Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China; [Wen, YC; Yu, Y] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: The successive dynamical evolution of a Bose-Einstein condensate confined in a cylindrical well is numerically studied in the framework of the time-dependent Gross-Pitaevskii equation. Interference in the nonlinear matter wave leads to concentric density rings. The phase distribution exhibits a discontinuous sequence of plateaulike belts. Abrupt jumps in the phase between adjacent belts imply large radial superfluid velocity at the borderline. This, however, does not mean large particle current because the corresponding superfluid density is nearly zero. The density zeros along with the large gradient are identified as ring dark solitons, which have a brief lifetime before evolving into other soliton states.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000251985900085
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5618
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Yang, Shi-Jie,Wu, Quan-Sheng,Zhang, Sheng-Nan,et al. Generating ring dark solitons in an evolving Bose-Einstein condensate[J]. PHYSICAL REVIEW A,2007,76(6):-.
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