Moment of Inertia and Quadrupole Response Function of a Trapped Superfluid

Details Moment of Inertia and Quadrupole Response Function of a Trapped Superfluid Moment of Inertia and Quadrupole Response Function of a Trapped Superfluid

2000-04-19

arxiv.org/abs/cond-mat/0004325v1

Physics

Condensed Matter

6 pages

Scientific paper

10.1103/PhysRevA.63.033602

We derive an explicit relationship between the moment of inertia and the quadrupole response function of an interacting gas confined in a harmonic trap. The relationship holds for both Bose and Fermi systems and is well suited to reveal the effects of irrotationality of the superfluid motion. Recent experimental results on the scissors mode are used to extract the value of the moment of inertia of a trapped Bose gas and to point out the deviations from the rigid value due to superfluidity.

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