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Moment of Inertia and Superfluidity of a Trapped Bose Gas

S. Stringari

cond-matarXiv:cond-mat/9509166

Abstract

The temperature dependence of the moment of inertia of a dilute Bose gas confined in a harmonic trap is determined. Deviations from the rigid value, due to the occurrence of Bose-Einstein condensation, reveal the superfluid behaviour of the system. In the noninteracting gas these deviations become important at temperatures of the order of Tc N-1/12. The role of interactions is also discussed.

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