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Solitons and vortices in an evolving Bose-Einstein condensate
Yang, Shi-Jie; Wu, Quan-Sheng; Feng, Shiping; Wen, Yu-Chuan; Yu, Yue; Yang, SJ , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
2008
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号77期号:3页码:-
摘要Spatiotemporal evolution of a confined Bose-Einstein condensate is studied by numerically integrating the time-dependent Gross-Pitaevskii equation. Self-interference between the successively expanding and reflecting nonlinear matter waves results in spiral atomic density profile, which subsequently degenerates into an embedding structure: The inner part preserves memory of the initial states while the outer part forms a sequence of necklacelike rings. The phase plot reveals a series of discrete concentric belts. The large gradients between adjacent belts indicate that the ring density notches are dark solitons. In the dynamical process, a scenario of vortex-antivortex pairs are spontaneously created and annihilated, whereas the total vorticity keeps invariant.
部门归属[Yang, SJ; Wu, QS; Feng, SP] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China; [Wen, YC] Capital Normal Univ, Dept Phys, Beijing 100037, Peoples R China; [Yu, Y] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Dark Solitons Dynamics
学科领域Physics
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收录类别SCI
WOS记录号WOS:000254541100266
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被引频次:8[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/311006/5565
专题理论物理所1978-2010年知识产出
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,Feng, Shiping,et al. Solitons and vortices in an evolving Bose-Einstein condensate[J]. PHYSICAL REVIEW A,2008,77(3):-.
APA Yang, Shi-Jie,Wu, Quan-Sheng,Feng, Shiping,Wen, Yu-Chuan,Yu, Yue,&Yang, SJ , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.(2008).Solitons and vortices in an evolving Bose-Einstein condensate.PHYSICAL REVIEW A,77(3),-.
MLA Yang, Shi-Jie,et al."Solitons and vortices in an evolving Bose-Einstein condensate".PHYSICAL REVIEW A 77.3(2008):-.
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