Non-Abelian magnetic flux at high temperatures

Abstract

We study by Monte Carlo methods the behavior of non-Abelian magnetic fields at high temperatures in the Mack-Petkova modified SU(2) lattice gauge theory which does not contain dynamical magnetic monopoles. Our results indicate that magnetic screening at high temperatures is a genuine phenomenon which survives in the continuum limit and is not an artifact of the standard Wilson lattice gauge theory caused by the artificial dynamical magnetic monopoles contained in this theory.