Moment of Inertia and Superfluidity of a Trapped Bose Gas

Stringari, S

doi:10.1103/PhysRevLett.76.1405

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Moment of Inertia and Superfluidity of a Trapped Bose Gas

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Author(s): S. Stringari

Publication date Created: 27 September 1995

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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 \(T_c N^{-1/12}\). The role of interactions is also discussed.