Current thermodynamics in superconducting and superfluid systems

One points out that a set of facts dealing with superconductivity and superfluidity demonstrates that the stationary current state of the mentioned systems is the state of thermodynamical equilibrium. Paper describes the current state in terms of the equilibrium thermodynamics, in case one considers the current (particle flow) in the mentioned systems as one of the thermodynamic parameters. The accepted approach enables on the basis of occurrence of continuous current states in the system to make a conclusion about ordering, being in its essence is a quantum phenomenon, in the mentioned system