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.
| Original language | English |
|---|---|
| Pages (from-to) | 6340-6354 |
| Number of pages | 15 |
| Journal | Physical Review E |
| Volume | 56 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1997 |