title: Scale-free topology-induced double resonance in networked two-state systems.
abstract: We study numerically the effect of a scale-free topology on the signal-to-noise ratio of networked two-state systems and find a double resonance phenomenon, i.e., a resonance on coupling strength and a stochastic resonance on noise strength. This finding suggests an alternative approach of self-tuning, i.e., tuning from the scale-free topology, instead of the self-tuning of potential. A heuristic theory through a starlike network is presented to explain the double resonance.
authors.affiliation: Institute of Theoretical Physics, East China Normal University, Shanghai, 200062, China.
authors.forename: Zonghua
authors.initials: Z
authors.lastname: Liu
authors.forename: Toyonori
authors.initials: T
authors.lastname: Munakata
mesh_terms: D001703:Biophysics / Q000379:methods*; D003627:Data Interpretation, Statistical; D008954:Models, Biological; D015233:Models, Statistical; D008962:Models, Theoretical; D013598:Systems Theory; D013997:Time Factors