We propose a mechanism which produces periodic variations of the degree of predictability in dynamical systems. It is shown that even in the absence of noise when the control parameter changes periodically in time, below and above the threshold for the onset of choas, stochastic resonance effects appear. As a result one has an alternation of chaotic and regular, i.e. predictable, evolutions in an almost periodic way, so that the Lyapunov exponent is positive but some time correlations do not decay.
STOCHASTIC RESONANCE IN DETERMINISTIC CHAOTIC SYSTEMS / Crisanti, Andrea; Falcioni, Massimo; G., Paladin; Vulpiani, Angelo. - In: JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL. - ISSN 0305-4470. - STAMPA. - 27:17(1994), pp. L597-L603. [10.1088/0305-4470/27/17/001]
STOCHASTIC RESONANCE IN DETERMINISTIC CHAOTIC SYSTEMS
CRISANTI, Andrea;FALCIONI, Massimo;VULPIANI, Angelo
1994
Abstract
We propose a mechanism which produces periodic variations of the degree of predictability in dynamical systems. It is shown that even in the absence of noise when the control parameter changes periodically in time, below and above the threshold for the onset of choas, stochastic resonance effects appear. As a result one has an alternation of chaotic and regular, i.e. predictable, evolutions in an almost periodic way, so that the Lyapunov exponent is positive but some time correlations do not decay.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
