Strong coupling effective theory with heavy fermions
arXiv:1112.2979
Abstract
We extend the recently developed strong coupling, dimensionally reduced Polyakov-loop effective theory from finite-temperature pure Yang-Mills to include heavy fermions and nonzero chemical potential by means of a hopping parameter expansion. Numerical simulation is employed to investigate the weakening of the deconfinement transition as a function of the quark mass. The tractability of the sign problem in this model is exploited to locate the critical surface in the (M/T, mu/T, T) space over the whole range of chemical potentials from zero up to infinity.
7 pages, 5 figures. Proceeding for the XXIX International Symposium on Lattice Field Theory (Lattice 2011), Squaw Valley, Lake Tahoe, California, July 10-16, 2011