Confinement versus color superconductivity: a lattice investigation
Abstract
High density YM-theory is addressed by means of an effective theory where a Higgs type field corresponds to the diquark order parameter. The effective Higgs theory mimics the Cooper instability at the Fermi surface. After Landau gauge fixing, the theory possesses a global color degree of freedom. Color superconductivity corresponds to a spontaneous breakdown of the residual global color symmetry. Numerical simulations illustrate this mechanism of spontaneously broken global color for the case of the standard electro-weak phase transition and for the case of the transition between the confinement and the Higgs phase, respectively. The latter transition is relevant for the study of diquark condensation.
Keywords
Cite
@article{arxiv.hep-lat/0109033,
title = {Confinement versus color superconductivity: a lattice investigation},
author = {Kurt Langfeld},
journal= {arXiv preprint arXiv:hep-lat/0109033},
year = {2007}
}
Comments
2 pages, contribution to 'Statistical QCD', Bielefeld, August 26-30, 2001