Enhancement of Stochastic Resonance in distributed systems due to a selective coupling

Abstract

Recent massive numerical simulations have shown that the response of a "stochastic resonator" is enhanced as a consequence of spatial coupling. Similar results have been analytically obtained in a reaction-diffusion model, using "nonequilibrium potential" techniques. We now consider a field-dependent diffusivity and show that the "selectivity" of the coupling is more efficient for achieving stochastic-resonance enhancement than its overall value in the constant-diffusivity case.

10 pgs (RevTex), 4 figures, submitted to Phys.Rev.Lett

References in corpus (1)

• Anomalous diffusion in the presence of external forces: exact time-dependent solutions and entropy

Cited by in corpus (10)

• Diversity-induced resonance
• Stochastic Resonance in Spatially Extended Systems: The Role of Far from Equilibrium Potentials
• System Size Stochastic Resonance: General Nonequilibrium Potential Framework
• Aspects of stochastic resonance in reaction-diffusion systems: The nonequilibrium-potential approach
• Variational Formulation for the KPZ and Related Kinetic Equations
• Stochastic resonance between dissipative structures in a bistable noise-sustained dynamics
• Stochastic resonance between noise-sustained patterns
• Stochastic Resonance in an Extended FitzHugh-Nagumo System: the Role of Selective Coupling
• Limit cycle induced by multiplicative noise in a system of coupled Brownian motors
• Modulated class A laser: Stochastic resonance in a limit-cycle potential system