Local Vortex Generation and the Surface Mode Spectrum of Large Bose-Einstein Condensates
- 20 November 2001
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 87 (24) , 240401
- https://doi.org/10.1103/physrevlett.87.240401
Abstract
A combination of analytical and numerical approaches obtains the complete dispersion curve for surface excitations in a condensate held in a plane linear potential. This improvement on previous approximate results yields an accurate formula for the local Landau critical velocity for vortex formation at the surface of a sufficiently large condensate, which agrees very well with recent experiments.Keywords
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