Condensation of Yang-Mills field at high temperature in the presence of fermions

The possible condensation is discussed of the time-component of the Yang-Mills field at finite temperature in the presence of Dirac fermions. It is shown that condensation takes place regardless of the number of fundamental and adjoint fermion species coupled to the Yang-Mills field. The effect of finite density of fermions is also investigated, and it is shown that the extent of the condensation, too, is independent of the densities. (author) 1 fig., 9 refs