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Andreev-Lifshitz supersolid revisited for a few electrons on a square lattice I

Georgios Katomeris·Franck Selva·Jean-Louis Pichard
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Abstract

In 1969, Andreev and Lifshitz have conjectured the existence of a supersolid phase taking place at zero temperature between the quantum liquid and the solid. In this and a succeeding paper, we re-visit this issue for a few polarized electrons (spinless fermions) interacting via a U/r Coulomb repulsion on a two dimensional L * L square lattice with periodic boundary conditions and nearest neighbor hopping.

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Georgios Katomeris, Franck Selva, Jean-Louis Pichard. 2003-05-27. Andreev-Lifshitz supersolid revisited for a few electrons on a square lattice I. https://doi.org/10.1140/epjb%2Fe2003-00048-0

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