Bose-Fermi-Hubbard model on a lattice with two nonequivalent sublattices

Details Bose-Fermi-Hubbard model on a lattice with two nonequivalent sublattices Bose-Fermi-Hubbard model on a lattice with two nonequivalent sublattices

2012-02-21

arxiv.org/abs/1202.4571v1

Condens. Matter Phys., 2011, vol. 14, No. 4, p. 43301:1-8

Physics

Condensed Matter

Quantum Gases

8 pages, 5 figures

Scientific paper

10.5488/CMP.14.43301

Phase transitions in systems described by Bose-Fermi-Hubbard model on a lattice with two nonequivalent sublattices are investigated in this work. The case of hard-core bosons is considered and pseudospin formalism is used. Phase diagrams are built in the plain of chemical potential of the bosons-bosonic hopping parameter. It is shown that in the case of anisotropic hopping, the region of the supersolid phase existence is possible for a smaller parameter space.

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