The critical points of strongly coupled lattice QCD at nonzero chemical potential
The critical points of strongly coupled lattice QCD at nonzero chemical potential
We study QCD at non-zero quark density, zero temperature, infinite coupling using the Glasgow algorithm. An improved complex zero analysis gives a critical point \mu_c in agreement with that of chiral symmetry restoration computed with strong coupling expansions, and monomer-dimer simulations. We observe, however, two unphysical critical points: the onset …