Fluctuation–Dissipation Theorem for Triple Correlations of Electric Noise

Electric fluctuation and noise accompany all electrode processes and can be employed for creating useful information technologies. Severe nonlinearity of electrochemical systems gives rise to a perceptible component of abnormal (non-Gaussian) electric noise. In this paper a fluctuation–dissipation theorem is formulated, which connects third-order noise spectra with faradaic low-level rectification. An analogue is provided: the Schottky formulas for the spectrum of third-order shot noise.