The Atomic Limit of the Boson-Fermion Model
Strongly Correlated Electrons
2009-10-30 v1
Abstract
The Boson-Fermion model, describing a mixture of hybridized localized Bosons and itinerant Fermions on a lattice, is known to exhibit spectral properties for the Fermions which upon lowering the temperature develop into a three pole structure in the vicinity of the Fermi level. These spectral features go hand in hand with the opening of a pseudogap in the density of states upon approaching the critical temperature Tc when superconductivity sets in. In the present work we study this model, in the atomic limit where the three pole structure arises naturally from the local bonding, anti-bonding and non-bonding states between the Bosons and Fermions.
Keywords
Cite
@article{arxiv.cond-mat/9702056,
title = {The Atomic Limit of the Boson-Fermion Model},
author = {T. Domanski and J. Ranninger and J. M. Robin},
journal= {arXiv preprint arXiv:cond-mat/9702056},
year = {2009}
}
Comments
revtex, 9 pages and 6 eps figures. Submitted to Europhysics Letters