Resonant activation in a tunnel diode: An experimental study

Mantegna, Rosario N.; Spagnolo, Bernardo
February 2000
AIP Conference Proceedings;2000, Vol. 502 Issue 1, p301
Academic Journal
We study the escape time from a metastable state of a physical system switching between two configurations under electronic control of a dichotomous noise. The physical system is obtained by using a tunnel diode as nonlinear device. We experimentally investigate the escape time of the system over a fluctuating barrier and its probability density function as a function of the correlation time of the dichotomous noise over more than 4 order of magnitude. We observe the essential feature of resonant activation namely the nonmonotonic behavior of the average escape time showing a minimum as a function of the correlation time. The shape of escape time probability density function is investigated and discussed in some representative conditions. © 2000 American Institute of Physics.


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