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Generating ring dark solitons in an evolving Bose-Einstein condensate
Yang, Shi-Jie; Wu, Quan-Sheng; Zhang, Sheng-Nan; Feng, Shiping; Guo, Wenan; Wen, Yu-Chuan; Yu, Yue; Yang, SJ , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
2007
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号76期号:6页码:-
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.
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
关键词Dynamics Equation Waves Atoms Trap Gas
学科领域Physics
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收录类别SCI
WOS记录号WOS:000251985900085
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5618
专题理论物理所SCI论文
通讯作者Yang, SJ , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
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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):-.
APA Yang, Shi-Jie.,Wu, Quan-Sheng.,Zhang, Sheng-Nan.,Feng, Shiping.,Guo, Wenan.,...&Yang, SJ , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.(2007).Generating ring dark solitons in an evolving Bose-Einstein condensate.PHYSICAL REVIEW A,76(6),-.
MLA Yang, Shi-Jie,et al."Generating ring dark solitons in an evolving Bose-Einstein condensate".PHYSICAL REVIEW A 76.6(2007):-.
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