Vacuum polarization due to a non-Abelian spherically symmetric chromodynamic field at a finite temperature

The model for gluon condensate of the form A _i ^a = _i ^a , A ₀ ^a =0, = const is considered at finite temperatures. The thermodynamic potential is computed in the one-loop approximation. Unlike the zero temperature case, it has a minimum at a nonvanishing condensate field.M. V. Lomonosov State University, Moscow. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 11, pp. 65–71, November, 1992.