Josephson junction with noise

1 December 1997

journal article
research article
Published by American Physical Society (APS) in Physical Review E

Vol. 56 (6) , 6340-6354
https://doi.org/10.1103/physreve.56.6340

Abstract

We analyze the voltage-current characteristics of a Josephson junction subject to multiplicative noise with and without additive noise. An analytical solution was obtained for the dichotomous multiplicative noise as well as for the forms of the voltage-current characteristics for different noise amplitudes and rates. Nonmonotonic behavior was found for the voltage as a function of noise rate (stochastic resonance). The cooperative action of additive and multiplicative noises results in a voltage larger than that predicted from Ohm’s law. The ratchet effect and limit cases of weak and strong noises are analyzed in detail.

Keywords

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