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题名: Dynamics and modulation of ring dark solitons in two-dimensional Bose-Einstein condensates with tunable interaction
作者: Hu, Xing-Hua ;  Zhang, Xiao-Fei ;  Zhao, Dun ;  Luo, Hong-Gang ;  Liu, W. M.
刊名: PHYSICAL REVIEW A
出版日期: 2009
卷号: 79, 期号:2, 页码:-
关键词: CYLINDRICAL KDV EQUATION ;  WAVES ;  MANAGEMENT ;  BACKLUND
学科分类: Physics
通讯作者: Hu, XH , Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
部门归属: [Hu, XH; Zhang, XF; Liu, WM] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China; [Zhang, XF] Honghe Univ, Coll Sci, Mengzi 661100, Peoples R China; [Zhao, D] Lanzhou Univ, Sch Math & Stat, Lanzhou 730000, Peoples R China; [Zhao, D; Luo, HG] Lanzhou Univ, Ctr Interdisciplinary Studies, Lanzhou 730000, Peoples R China; [Luo, HG] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We investigate both analytically and numerically the dynamics and modulation of ring dark solitons in two-dimensional Bose-Einstein condensates with tunable interaction. The analytic solutions for the ring dark soliton are derived by using a transformation method. A shallow ring dark soliton is stable when the ring is slightly distorted, while for large deformation of the ring, vortex pairs appear and demonstrate different dynamical behaviors: the vortex pairs transform into dark lumplike solitons and revert to ring dark solitons periodically. Moreover, our results show that the dynamical evolution of the ring dark soliton can be dramatically affected by the Feshbach resonance, and the lifetime of the ring dark soliton can be greatly extended, which offers a useful method for observing ring dark solitons in future experiments.
资助者: NSFC[60525417, 10740420252, 10874235]; NKBRSFC[2005CB724508, 2006CB921400]; NCET
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000263815000133
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5391
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:
Hu, Xing-Hua,Zhang, Xiao-Fei,Zhao, Dun,et al. Dynamics and modulation of ring dark solitons in two-dimensional Bose-Einstein condensates with tunable interaction[J]. PHYSICAL REVIEW A,2009,79(2):-.
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