Scissors mode and superfluidity of a trapped Bose-Einstein condensed gas

Preprint

20 July 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9907293

Abstract

We investigate the oscillation of a dilute atomic gas generated by a sudden rotation of the confining trap (scissors mode). This oscillation reveals the effects of superfluidity exhibited by a Bose-Einstein condensate. The scissors mode is investigated also in a classical gas above T_c in various collisional regimes. The crucial difference with respect to the superfluid case arises from the occurence of low frequency components, which are responsible for the rigid value of the moment of inertia. Different experimental procedures to excite the scissors mode are discussed.

Keywords

BOSE EINSTEIN CONDENSED
EINSTEIN CONDENSATE
SUPERFLUIDITY
CONDENSED GAS
SCISSORS MODE
TRAPPED BOSE

All Related Versions

Version 1, 1999-07-20, ArXiv
Published version: Physical Review Letters, 83 (22), 4452.

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