Normal modes of a vortex in a trapped Bose-Einstein condensate
نویسندگان
چکیده
منابع مشابه
Vortex motion in trapped Bose–Einstein condensate
We have studied the motion of a vortex-antivortex pair together with a single vortex in trapped Bose-Einstein condensate (BEC) by numerically solving the twodimensional Gross-Pitaevskii equation, and found that the path of the vortices depends on the initial separation distance and dissipation. This motion was periodic and it was found that sound waves appear due to the cyclical movement, whose...
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Shin-Ichiro Ogawa, Mikko Möttönen, Mikio Nakahara, Tetsuo Ohmi, and Hisanori Shimada Department of Physics, Osaka City University, Osaka 558-8585, Japan Materials Physics Laboratory, Helsinki University of Technology, P.O. Box 2200 (Technical Physics), FIN-02015 HUT, Finland Department of Physics, Kinki University, Higashi-Osaka 577-8502, Japan Department of Physics, Kyoto University, Kyoto 606...
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I predict the existence of internal spatial currents in a single macroscopic quantum system, namely in trapped dilute-gas at sufficiently low temperatures, when a Bose-Einstein condensation occurs. The spatial profiles of the wavefunctions of low-lying states in such a system are different due to the inhomogeneity, caused by an asymmetry of external trapping potential. This is the reason for ap...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 1998
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.58.3168