A new perspective on stochastic resonance in monostable systems

Abstract

Stochastic resonance induced by multiplicative white noise is theoretically studied in forced damped monostable oscillators. A stochastic amplitude equation is derived for the oscillation envelope, which has a linear stochastic resonance. This phenomenon is persistent when nonlinearities are considered. We propose three simple systems-a horizontally driven pendulum, a forced electrical circuit and a laser with an injected signal-that display thisstochastic resonance. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.