Pm. Gade et al., STOCHASTIC RESONANCE IN MAPS AND COUPLED MAP LATTICES, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 56(3), 1997, pp. 2518-2526
We demonstrate the phenomenon of stochastic resonance (SR) for discret
e-time dynamical systems. We investigate various systems that are not
necessarily bistable, but do have two well-defined states, su;itching
between which is aided by external noise which can be additive or mult
iplicative. Thus we find it to be a fairly generic phenomenon. In thes
e systems, we investigate kinetic aspects like hysteresis which reflec
t the nonlinear and dissipative nature of the response of the system t
o the external field. We also explore spatially extended systems with
additive or parametric noise and find that they differ qualitatively.