Oscillations of a rapidly rotating annular Bose-Einstein condensate

Abstract

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.

7 pages, revtex4

References in corpus (3)

• Observation of Tkachenko Oscillations in Rapidly Rotating Bose-Einstein Condensates
• Observation of Long-lived Vortex Aggregates in Rapidly Rotating Bose-Einstein Condensates
• Tkachenko modes of vortex lattices in rapidly rotating Bose-Einstein condensates

Cited by in corpus (7)

• Observations on Sound Propagation in Rapidly Rotating Bose-Einstein Condensates
• Quantum Noise Analysis of Spin Systems Realized with Cold Atoms
• Landau levels and the Thomas-Fermi structure of rapidly rotating Bose-Einstein condensates
• A vortex dipole in a trapped two-dimensional Bose-Einstein condensate
• Lowest Landau-level description of a Bose-Einstein condensate in a rapidly rotating anisotropic trap
• Breathing mode of rapidly rotating Bose-Einstein condensates
• Restoring quasi-reversibility with a single topological charge