Hypersensitive transport in a phase model with multiplicative stimulus
arXiv:cond-mat/0106614 · doi:10.1016/S0375-9601(01)00726-5
Abstract
In a simple system with periodic symmetric potential, the phase model under effect of strong multiplicative noise or periodic square wave, we found a giant response, in the form of directed flux, to an ultrasmall dc signal. The resulting flux demonstrates a bell-shaped dependence on multiplicative noise correlation time and occurs even in the case of large (compared to the signal) additive noise.
3 EPS figures, submitted to Phys.Lett.A