Nonlinear sigma model approach for chiral fluctuations and symmetry breakdown in Nambu-Jona-Lasinio model
High Energy Physics - Phenomenology
2009-10-31 v1 Condensed Matter
High Energy Physics - Theory
Abstract
In this paper we discuss symmetry breakdown in NJL model at low N_c. In particular we propose a modified NJL model that displays a symmetry breakdown and also at finite temperatures under certain conditions the chiral fluctuations in this model give rise to a phase analogous to pseudogap phase of strong-coupling and low carrier density superconductors.
Keywords
Cite
@article{arxiv.hep-ph/0006087,
title = {Nonlinear sigma model approach for chiral fluctuations and symmetry breakdown in Nambu-Jona-Lasinio model},
author = {Egor Babaev},
journal= {arXiv preprint arXiv:hep-ph/0006087},
year = {2009}
}
Comments
accepted to Phys. Rev. D. Latest updates of this and related papers are available at http://www.teorfys.uu.se/PEOPLE/egor/