Phys. Rev. A 63, 033602 (2001) [5 pages]Moment of inertia and quadrupole response function of a trapped superfluidReceived 17 April 2000; published 5 February 2001 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. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.63.033602
DOI:
10.1103/PhysRevA.63.033602
PACS:
05.30.Jp, 03.65.-w, 32.80.Pj, 67.40.-w
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