Is the supersolid superfluid

Details Is the supersolid superfluid Is the supersolid superfluid

2009-01-21

arxiv.org/abs/0901.3218v1

Physics

Condensed Matter

Other Condensed Matter

13 pages, presented at SUPERSOLID-2008, ICTP, Trieste (Aug. 2008)

Scientific paper

An analysis of previous theories of superfluidity of quantum solids is presented in relation to the nonclassical rotational moment of inertia (NCRM) found first in Kim and Chan experiments. A theory of supersolidity is proposed based on the presence of an additional conservation law. It is shown that the additional entropy or mass fluxes depend on the quasiparticle dispersion relation and vanish in the effective mass approximation. This implies that at low temperatures when the parabolic part of the dispersion relation predominates the supersolid properties should be less expressed.

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