Spontaneous flavor and parity breaking with Wilson fermions
Spontaneous flavor and parity breaking with Wilson fermions
We discuss the phase diagram of Wilson fermions in the ${m}_{0}\ensuremath{-}{g}^{2}$ plane for two-flavor QCD. We argue that, as originally suggested by Aoki, there is a phase in which flavor and parity are spontaneously broken. Recent numerical results on the spectrum of the overlap Hamiltonian have been interpreted as evidence …