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.
CitationLacasta, A.M; Sagues, F; Sancho, J.M. Coherence and anticoherence resonance tuned by noise. "PHYSICAL REVIEW E", vol. 66, núm. 4, p. 045105.
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