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arXiv · 1303.0947

Collective dynamics of vortices in trapped Bose-Einstein condensates

Tapio Simula
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Abstract

We have calculated collective mode spectra for three-dimensional, rotating Bose-Einstein condensates in oblate harmonic traps using the microscopic Bogoliubov-deGennes 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.

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Tapio Simula. 2013-03-05. Collective dynamics of vortices in trapped Bose-Einstein condensates. https://doi.org/10.1103/physreva.87.023630

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