Fermion Condensation and Non Fermi Liquid Behavior in a Model with Long Range Forces
Condensed Matter
2009-10-28 v1
Abstract
The phenomenon of the so called Fermion condensation, a phase transition analogous to Bose condensation but for Fermions, postulated in the past to occur in systems with strong momentum dependent forces, is reanalysed in a model with infinite range interactions. The strongly non Fermi Liquid behavior of this system is demonstrated analytically at and at in the superconducting and normal phases. The validity of the quasiparticle picture is investigated and seems to hold true for temperatures less than the characteristic temperature of the Fermion condensation.
Cite
@article{arxiv.cond-mat/9603060,
title = {Fermion Condensation and Non Fermi Liquid Behavior in a Model with Long Range Forces},
author = {J. Dukelsky and V. A. Khodel and P. Schuck and V. R. Shaginyan},
journal= {arXiv preprint arXiv:cond-mat/9603060},
year = {2009}
}
Comments
22 LaTeX pages, 6 figures can be obtained from emduke@roca.csic.es