Oscillations of a rapidly rotating annular Bose-Einstein condensate

Details Oscillations of a rapidly rotating annular Bose-Einstein condensate Oscillations of a rapidly rotating annular Bose-Einstein condensate

2003-09-08

arxiv.org/abs/cond-mat/0309204v1

Physics

Condensed Matter

Soft Condensed Matter

7 pages, revtex4

Scientific paper

10.1103/PhysRevA.68.063617

A time-dependent variational Lagrangian analysis based on the Gross-Pitaevskii energy functional serves to study the dynamics of a metastable giant vortex in a rapidly rotating Bose-Einstein condensate. The resulting oscillation frequencies of the core radius reproduce the trends seen in recent experiments [Engels et al., Phys. Rev. Lett. 90, 170405 (2003)], but the theoretical values are smaller by a factor approximately 0.6-0.8.

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