Monostable array-enhanced stochastic resonance - art. no. 051107

We present a simple nonlinear system that exhibits multiple distinct stocha stic resonances. By adjusting the noise and coupling of an array of underda mped, monostable oscillators, we modify the array's natural frequencies so that the spectral response of a typical oscillator in an array of N oscilla tors exhibits N - 1 different stochastic resonances. Such families of reson ances may elucidate and facilitate a variety of noise-mediated cooperative phenomena, such as noise-enhanced propagation, in a broad class of similar nonlinear systems.