Stochastic versus dynamic resonant activation to enhance threshold detector sensitivity

D.A. Ladeynov, D.G. Egorov and A.L. Pankratov

Chaos, Solitons & Fractals, 2023, vol. 171, issue C

Abstract: The Josephson junction, as a threshold detector, is studied in the presence of noise and a weak external signal in the framework of the pendulum model. A range of parameters, efficient for weak signal detection has been found. While in the low noise limit the signal can be enhanced via dynamic resonant activation mechanism, even weaker signals can be efficiently detected with the help of noise via stochastic resonant activation mechanism. The parameter optimizations of a microwave single photon counter prototype based on aluminum Josephson junction are discussed.

Keywords: Josephson escape detector; Resonant response; Resonant activation; Noise-induced escapes (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:171:y:2023:i:c:s0960077923004071

DOI: 10.1016/j.chaos.2023.113506

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