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Experimental Investigation of Resonant Activation

Rosario N. Mantegna·Bernardo Spagnolo
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Abstract

We experimentally investigate the escape from a metastable state over a fluctuating barrier of a physical system. The system is switching between two states under electronic control of a dichotomous noise. We measure the escape time and its probability density function as a function of the correlation rate of the dichotomous noise in a frequency interval spanning more than 4 frequency decades. We observe resonant activation, namely a minimum of the average escape time as a function of the correlation rate. We detect two regimes in the study of the shape of the escape time probability distribution: (i) a regime of exponential and (ii) a regime of non-exponential probability distribution.

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Rosario N. Mantegna, Bernardo Spagnolo. 2000-02-15. Experimental Investigation of Resonant Activation. https://doi.org/10.1103/physrevlett.84.3025

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