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

Abstract

In this second paper, using N=3 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, we show that a single unpaired fermion can co-exist with a correlated two particle Wigner molecule for intermediate values of the Coulomb energy to kinetic energy ratio r_s.

15 pages, 28 postscript figures

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• Persistent currents in two dimensions: New regimes induced by the interplay between electronic correlations and disorder
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