The Moment of Inertia of a Many-Fermion System

The moment of inertia Q of a trapped superfluid gas of atomic Fermions (6Li) is calculated as a function of the temperature. At zero temperature the moment of inertia takes on the irrotational flow value. Only for T very close to Tc rigid rotation is attained. It is proposed that future measurements of the rotational energy will unambiguously reveal whether the system is in a superfluid state or not.

arXiv:cond-mat/0004006Apr 1, 20000 citations

The Moment of Inertia of a Many-Fermion System

Amnon Katz

Published Jan 1, 1962• 0 citations

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The moment of inertia \ensuremath{\Theta} of a trapped superfluid gas of atomic fermions

{(}^{6}\mathrm{Li})

is calculated as a function of the temperature. At zero temperature the moment of inertia takes on the irrotational-flow value. Only for T very close to

{T}_{c}

is rigid rotation attained. It is proposed that future measurements of the rotational energy will unambiguously reveal whether the system is in a superfluid state or not.