Experimental confirmation of breach of the basic postulate of Statistical Physics

In the course of computer modeling of the most probable stationary macrostates of non-ergodic closed systems, a forecast was obtained about the existence of limits of applicability of the basic axiomatic postulate of statistical physics, known as the Principle of Equiprobability of each realizable microstate. Moreover, for such systems, thermodynamic equilibrium is no longer the only permissible stationary state. The possibility of other most probable macrostates is predicted, which are characterized by the presence of a stable anisotropy of the polarization parameters of thermal radiation filling these systems. The article presents successful results of direct experimental verification of the above prognosis on a real physical installation. Important regularities inherent in the used mathematical model are noted.