Volume 57, Number 5, March 2002
|Page(s)||644 - 650|
|Published online||01 September 2002|
Interplay of frequency-synchronization with noise: Current resonances, giant diffusion and diffusion-crests
Departament de Física Fonamental, Facultat de Física,
Universitat de Barcelona
Diagonal 647, 08028 Barcelona, Spain
2 Universität Augsburg, Institut für Physik Universitätsstrasse 1, D-86135 Augsburg, Germany
Corresponding author: email@example.com
Accepted: 12 December 2001
We elucidate how the presence of noise may significantly interact with the synchronization mechanism of systems exhibiting frequency-locking. The response of these systems exhibits a rich variety of behaviors, such as resonances and anti-resonances which can be controlled by the intensity of noise. The transition between different locked regimes provokes the development of a multiple enhancement of the effective diffusion. This diffusion behavior is accompanied by a crest-like peak-splitting cascade when the distribution of the lockings is self-similar, as occurs in periodic systems that are able to exhibit a Devil's staircase sequence of frequency-lockings.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 05.45.Xt – Synchronization; coupled oscillators / 05.60.-k – Transport processes
© EDP Sciences, 2002
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