Fokker-Planck equations for stochastic diffusion associated with Markovian electrochemical noise

The theoretical analysis of quadratic correlations of equilibrium electrical fluctuations in the Markovian electrochemical ac circuit is accomplished. The modified Fokker-Plank equation which allows one to follow the time evolution of 2nd-order correlators of electrochemical stochastic diffusion associated with the Markovian electrochemical ac circuit (Eq. (7)) is obtained. Due to interdisciplinary significance of the random process theory, the resulting Fokker-Planck equation is also of certain interest for the general theory of stochastic phenomena occurring near the equilibrium state. The derived modified Fokker-Planck equation can be used in the electrochemical noise diagnosis as the Markovian standard of electrochemical stochastic diffusion.