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Pulse propagation sustained by noise in arrays of bistable electronic circuits
Bascones, Roberto; García Ojalvo, Jordi; Sancho, José M.
Universitat de Barcelona
One-dimensional arrays of nonlinear electronic circuits are shown to support propagation of pulses when operating in a locally bistable regime, provided the circuits are under the influence of a global noise. These external random fluctuations are applied to the parameter that controls the transition between bistable and monostable dynamics in the individual circuits. As a result, propagating fronts become destabilized in the presence of noise, and the system self-organizes to allow the transmission of pulses. The phenomenon is also observed in weakly coupled arrays, when propagation failure arises in the absence of noise.
Física matemàtica
Física estadística
Sistemes dinàmics diferenciables
Mathematical physics
Statistical physics
Differentiable dynamical systems
(c) The American Physical Society, 2002
The American Physical Society

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