Vortex pair excitation in a Bose-Einstein condensate by moving potential barriers

被引：1
|
作者：
Mironov V.A. [1 ]
Smirnov L.A. [1 ]
机构：
[1] Institute of Applied Physics, Russian Academy of Sciences, Nizhni Novgorod 603950
来源：
Bulletin of the Russian Academy of Sciences: Physics | 2009年 / 73卷 / 12期
关键词：
Vortex; Mach Number; Potential Barrier; Vortex Pair; Einstein Condensate;
D O I：
10.3103/S1062873809120314
中图分类号：
学科分类号：
摘要：
The subsonic motion regime of a potential barrier in a Bose-Einstein condensate is considered. It is characterized by a critical velocity above which vortex pairs appear with opposite topological charges ("vortex- antivortex" pairs). The theoretical picture developed is confirmed by the results of numerical simulations within the framework of the Gross-Pitaevskii equation. © 2009 Allerton Press, Inc.
引用
收藏
页码：1684 / 1688
页数：4
相关论文
共 50 条
  • [41] Analytic vortex dynamics in an annular Bose-Einstein condensate
    Toikka, L. A.
    Suominen, K. -A.
    PHYSICAL REVIEW A, 2016, 93 (05)
  • [42] Observation of Vortex Dipoles in an Oblate Bose-Einstein Condensate
    Neely, T. W.
    Samson, E. C.
    Bradley, A. S.
    Davis, M. J.
    Anderson, B. P.
    PHYSICAL REVIEW LETTERS, 2010, 104 (16)
  • [43] Vortex stability near the surface of a Bose-Einstein condensate
    Al Khawaja, U
    PHYSICAL REVIEW A, 2003, 68 (06):
  • [44] Kelvin mode of a vortex in a nonuniform Bose-Einstein condensate
    Fetter, AL
    PHYSICAL REVIEW A, 2004, 69 (04): : 043617 - 1
  • [45] Stability of a single vortex in a trapped Bose-Einstein condensate
    G. M. Kavoulakis
    The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics, 2005, 36 : 11 - 15
  • [46] Normal modes of a vortex in a trapped Bose-Einstein condensate
    Svidzinsky, AA
    Fetter, AL
    PHYSICAL REVIEW A, 1998, 58 (04): : 3168 - 3179
  • [47] Dynamics of a single vortex line in a Bose-Einstein condensate
    Bretin, V
    Rosenbusch, P
    Dalibard, J
    JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, 2003, 5 (02) : S23 - S28
  • [48] Stability of a vortex in a rotating trapped Bose-Einstein condensate
    Fetter, AL
    Svidzinsky, AA
    QUANTIZED VORTEX DYNAMICS AND SUPERFLUID TURBULENCE, 2001, 571 : 320 - 326
  • [49] Pumping vortex into a Bose-Einstein condensate of heteronuclear molecules
    Xu, Z. F.
    Wang, R. Q.
    You, L.
    NEW JOURNAL OF PHYSICS, 2009, 11
  • [50] Vortex dipole in a trapped atomic Bose-Einstein condensate
    Zhou, Q
    Zhai, H
    PHYSICAL REVIEW A, 2004, 70 (04): : 043619 - 1
12345