Collective dynamics of vortices in trapped Bose-Einstein condensates

被引：18
|
作者：
Simula, Tapio [1 ]
机构：
[1] Monash Univ, Sch Phys, Clayton, Vic 3800, Australia
来源：
PHYSICAL REVIEW A | 2013年 / 87卷 / 02期
关键词：
VORTEX OSCILLATIONS; QUANTIZED VORTICES; HYDRODYNAMICS; TEMPERATURE; INSTABILITY; STABILITY; MOTION; WAVES; LINES;
D O I：
10.1103/PhysRevA.87.023630
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We have calculated collective-mode spectra for three-dimensional, rotating Bose-Einstein condensates in oblate harmonic traps using the microscopic Bogoliubov-de Gennes field theory. For condensates with N-v vortices, N-v Kelvin-Tkachenko-mode branches are obtained. The features of these modes are compared with those predicted by a classical point-vortex model. We have created movies to visualize the motion of the vortices corresponding to the Kelvin-Tkachenko waves. DOI: 10.1103/PhysRevA.87.023630
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页数：7
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