Conference Proceedings
Phase Diagram of Wilson and Twisted Mass Fermions at finite isospin chemical potential
M Kieburg, K Splittorff, JJM Verbaarschot, S Zafeiropoulos
Proceedings of Science | AMER PHYSICAL SOC | Published : 2014
Abstract
Wilson Fermions with untwisted and twisted mass are widely used in lattice simulations. Therefore one important question is whether the twist angle and the lattice spacing affect the phase diagram. We briefly report on the study of the phase diagram of QCD in the parameter space of the degenerate quark masses, isospin chemical potential, lattice spacing, and twist angle by employing chiral perturbation theory. Moreover we calculate the pion masses and their dependence on these four parameters.
Grants
Awarded by U.S. Department of Energy
Funding Acknowledgements
This work was supported by U.S. DOE Grant No. DE-FAG-88FR40388 (J. V.), the Humboldt Foundation (M. K., S. Z.), CRC 701: Spectral Structures and Topological Methods in Mathematics of the Deutsche Forschungsgemeinschaft, the Sapere Aude program of The Danish Council for Independent Research (K. S.) and the Centre National de la Recherche Scientifique (S. Z.).