Edwards, M.
, Clark, C.
, Pedri, P.
, Pitaevskii, L.
and Stringari, S.
(2002),
Consequence of Superfluidity on the Expansion of a Rotating Bose-Einstein Condensate, Physical Review Letters
(Accessed October 22, 2025)
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Consequence of Superfluidity on the Expansion of a Rotating Bose-Einstein Condensate
Published
Author(s)
, , P Pedri, L Pitaevskii, S Stringari
Abstract
By solving the hydrodynamic equations of irrotational superfluids we investigate the time evolution of a rotating condensate expanding after the sudden release of the confining trap. If the condensate is initially rotating slowly its angular velocity is predicted to exhibit a fast increase during the first stage of the expansion. The maximum value acquired by the angular velocity is accompanied by a minimum in the deformation of the condensate in the rotating plane. During the expansion the sample makes a global rotation of about p/2, the exact value depending on the initial value of the angular velocity.Citation
Physical Review Letters
Volume
88
Issue
No. 7
Pub Type
Journals
Keywords
Bose-Einstein condensate, matter waves, mean-field theory, superfluidity
Citation
Issues
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Created February 1, 2002, Updated June 2, 2021