Moment of Inertia and Superfluidity of a Trapped Bose Gas

Details Moment of Inertia and Superfluidity of a Trapped Bose Gas Moment of Inertia and Superfluidity of a Trapped Bose Gas

1995-09-27

arxiv.org/abs/cond-mat/9509166v1

Physics

Condensed Matter

10 pages, REVTEX, 1 figure attached as postscript file

Scientific paper

10.1103/PhysRevLett.76.1405

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.

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