Stationary states of a rotating Bose-Einstein condensate: routes to vortex nucleation

Preprint

4 January 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0101051

Abstract

Using a focused laser beam we stir a $^{87}$Rb Bose-Einstein condensate confined in a magnetic trap. We observe that the steady states of the condensate correspond to an elliptic cloud, stationary in the rotating frame. These steady states depend nonlinearly on the stirring parameters (amplitude and frequency), and various solutions can be reached experimentally depending on the path followed in this parameter space. These states can be dynamically unstable and we observe that such instabilities lead to vortex nucleation in the condensate.

Keywords

BOSE EINSTEIN CONDENSATE
EINSTEIN CONDENSATE
VORTEX NUCLEATION
STATIONARY STATES
ROTATING BOSE

All Related Versions

Version 1, 2001-01-04, ArXiv
Published version: Physical Review Letters, 86 (20), 4443.

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