Volume 79, Number 5, September 2007
|Number of page(s)||4|
|Published online||03 August 2007|
Noise-induced forced synchronization of global variables in coupled bistable systems
Universidad de Sevilla, Física Teórica - Apartado de Correos 1065, Sevilla 41080, Spain
Accepted: 16 July 2007
We analyze the noise-induced synchronization between a collective variable characterizing a complex system with a finite number of interacting bistable units and time-periodic driving forces. A random phase process associated to the collective stochastic variable is defined. Its average phase frequency and average phase diffusion are used to characterize the phenomenon. Our analysis is based on numerical solutions of the corresponding set of Langevin equations.
PACS: 05.45.Xt – Synchronization; coupled oscillators / 05.10.Gg – Stochastic analysis methods (Fokker-Planck, Langevin, etc.) / 05.40.Ca – Noise
© Europhysics Letters Association, 2007
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