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Shape oscillation of a rotating Bose-Einstein condensate

Sabine Stock·Vincent Bretin·Frederic Chevy·Jean Dalibard
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Abstract

We present a theoretical and experimental analysis of the transverse monopole mode of a fast rotating Bose-Einstein condensate. The condensate's rotation frequency is similar to the trapping frequency and the effective confinement is only ensured by a weak quartic potential. We show that the non-harmonic character of the potential has a clear influence on the mode frequency, thus making the monopole mode a precise tool for the investigation of the fast rotation regime.

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Sabine Stock, Vincent Bretin, Frederic Chevy, Jean Dalibard. 2003-11-05. Shape oscillation of a rotating Bose-Einstein condensate. https://doi.org/10.1209/epl%2Fi2003-10179-x

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