Chiral Symmetry Breaking in an External Field
Abstract
The effects of an external field on the dynamics of chiral symmetry breaking are studied using quenched, ladder QED as our model gauge field theory. It is found that a uniform external magnetic field enables the chiral symmetry to be spontaneously broken at weak gauge couplings, in contrast with the situation when no external field is present. The broken chiral symmetry is restored at high temperatures as well as at high chemical potentials. The nature of the two chiral phase transitions is different: the transition at high temperatures is a continuous one whereas the phase transition at high chemical potentials is discontinuous.
Keywords
Cite
@article{arxiv.hep-th/9806208,
title = {Chiral Symmetry Breaking in an External Field},
author = {C. N. Leung},
journal= {arXiv preprint arXiv:hep-th/9806208},
year = {2009}
}
Comments
RevTeX; talk presented at the 2nd Latin American Symposium on High Energy Physics, San Juan, Puerto Rico, April 1998