We perform a numerical study of the systematic effects involved in the determination of the critical line at real baryon chemical potential by analytic continuation from results obtained at imaginary chemical potentials. We present results obtained in a theory free of the sign problem, three-color QCD with finite isospin chemical potential, and comment on general features which could be relevant also to the continuation of the critical line in real QCD at finite baryon density.
@article{arxiv.1001.4439,
title = {On the analytic continuation of the critical line},
author = {Paolo Cea and Leonardo Cosmai and Massimo D'Elia and Chiara Manneschi and Alessandro Papa},
journal= {arXiv preprint arXiv:1001.4439},
year = {2010}
}
Comments
7 pages, 3 figures, Contribution to The XXVII International Symposium on Lattice Field Theory, Beijing, July 25-31, 2009