Bose-Fermi-Hubbard model at finite temperature
Other Condensed Matter
2010-09-07 v2
Abstract
The phase transitions at finite temperatures in the systems described by the Bose-Fermi-Hubbard model are investigated in this work in the framework of the selfconsistent random phase approximation. The case of the hard-core bosons is considered and pseudospin formalism is used. The density-density correlator is calculated in the random phase approximation and the possibilities of transitions from superfluid to supersolid phases are investigated. It is shown that the transitions between uniform and charge ordered phases can be of the second or the first order, depending on the system parameters.
Keywords
Cite
@article{arxiv.1004.0304,
title = {Bose-Fermi-Hubbard model at finite temperature},
author = {T S Mysakovych},
journal= {arXiv preprint arXiv:1004.0304},
year = {2010}
}