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Kelvin Modes of a fast rotating Bose-Einstein Condensate

F. Chevy·S. Stringari
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Abstract

Using the concept of diffused vorticity and the formalism of rotational hydrodynamics we calculate the eigenmodes of a harmonically trapped Bose-Einstein condensate containing an array of quantized vortices. We predict the occurrence of a new branch of anomalous excitations, analogous to the Kelvin modes of the single vortex dynamics. Special attention is devoted to the excitation of the anomalous scissors mode.

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F. Chevy, S. Stringari. 2003-05-23. Kelvin Modes of a fast rotating Bose-Einstein Condensate. https://doi.org/10.1103/physreva.68.053601

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