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Percolation Enhanced Supersolids in the Extended Bose-Hubbard Model (1110.2957v2)
Published 13 Oct 2011 in cond-mat.dis-nn and cond-mat.quant-gas
Abstract: We theoretically study the stability of lattice supersolid states in the extended Bose-Hubbard model with bounded spatial disorder. We construct a disorder mean field theory and compare with quantum Monte Carlo calculations. The supersolid survives weak disorder on the simple cubic lattice. We also find that increasing disorder strength can transform a lattice solid into a supersolid as it tends to percolate through the disorder landscape.
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