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arXiv · 0705.2499

Nonclassical rotational inertia for a supersolid under rotation

Amandine Aftalion·Xavier Blanc·Robert L. Jerrard
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Abstract

As proposed by Leggett [4], the supersolidity of a crystal is characterized by the Non Classical Rotational Inertia (NCRI) property. Using a model of quantum crystal introduced by Josserand, Pomeau and Rica [5], we prove that NCRI occurs. This is done by analyzing the ground state of the aforementioned model, which is related to a sphere packing problem, and then deriving a theoretical formula for the inertia momentum. We infer a lower estimate for the NCRI fraction, which is a landmark of supersolidity.

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Amandine Aftalion, Xavier Blanc, Robert L. Jerrard. 2007-07-17. Nonclassical rotational inertia for a supersolid under rotation. https://doi.org/10.1103/physrevlett.99.135301

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