We compute the condensate in QCD with a single quark flavor using numerical simulations with the overlap formulation of lattice fermions. The condensate is extracted by fitting the distribution of low lying eigenvalues of the Dirac operator in sectors of fixed topological charge to the predictions of Random Matrix Theory. Our results are in excellent agreement with estimates from the orientifold large-N_c expansion.
@article{arxiv.hep-th/0605147,
title = {Quark condensate in one-flavor QCD},
author = {Thomas DeGrand and Roland Hoffmann and Stefan Schaefer and Zhaofeng Liu},
journal= {arXiv preprint arXiv:hep-th/0605147},
year = {2009}
}
Comments
12 pages, 4 figures, REVTeX4, v2: Small changes, extended introduction, published version