Nonclassical rotational inertia for a supersolid under rotation

Details Nonclassical rotational inertia for a supersolid under rotation Nonclassical rotational inertia for a supersolid under rotation

2007-05-17

arxiv.org/abs/0705.2499v2

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevLett.99.135301

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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