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Observation of the scissors mode and evidence for superfluidity of a trapped bose-einstein condensed Gas

Abstract:

We report the observation of the scissors mode of a Bose-Einstein condensed gas of 87Rb atoms in a magnetic trap, which gives direct evidence of superfluidity in this system. The scissors mode of oscillation is excited by a sudden rotation of the anisotropic trapping potential. For a gas above T(c) (normal fluid) we detect the occurrence of oscillations at two frequencies, with the lower frequency corresponding to the rigid body value of the moment of inertia. Well below T(c) the condensate o...

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Publication status:
Published

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Publisher copy:
10.1103/physrevlett.84.2056

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Journal:
Physical Review Letters More from this journal
Volume:
84
Issue:
10
Pages:
2056-2059
Publication date:
2000-03-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Pubs id:
pubs:15506
UUID:
uuid:fe4be286-f736-4cc8-bd3e-ed4d5d2d8945
Local pid:
pubs:15506
Source identifiers:
15506
Deposit date:
2012-12-19

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