No $Z_N$ - bubbles in hot Yang-Mills theory

Abstract

Pure Yang-Mills theory at high temperature is considered. We show that no distinct $Z_N$- phases separated by domain walls do exist in the physical Minkowski space. That means the absense of the spontaneous breaking of $Z_N$- symmetry in the physical meaning of this word.

An invited talk presented on the ICHEP-94 conference. LaTeX, 9 pages