Andreev-Lifshitz supersolid revisited for a few electrons on a square lattice II
arXiv:cond-mat/0305616 · doi:10.1140/epjb/e2003-00145-0
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