Coherence and anticoherence resonance tunned by noise

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Title:	Coherence and anticoherence resonance tunned by noise
Author:	Lacasta Palacio, Ana María; Sagués i Mestre, Francesc; Sancho, José M.
Other authors:	Universitat de Barcelona
Abstract:	We present numerical evidence and a theoretical analysis of the appearance of anticoherence resonance induced by noise, not predicted in former analysis of coherence resonance. We have found that this phenomenon occurs for very small values of the intensity of the noise acting on an excitable system, and we claim that this is a universal signature of a nonmonotonous relaxational behavior near its oscillatory regime. Moreover, we demonstrate that this new phenomenon is totally compatible with the standard situation of coherence resonance appearing at intermediate values of noise intensity.
Subject(s):	-Física matemàtica -Física estadística -Termodinàmica -Sistemes dinàmics diferenciables -Mathematical physics -Statistical physics -Thermodynamics -Differentiable dynamical systems
Rights:	(c) The American Physical Society, 2002
Document type:	Article Article - Published version
Published by:	The American Physical Society
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