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Vibrational resonance in noise-induced structure

  • We report on the effect of vibrational resonance in a spatially extended system of coupled noisy oscillators under the action of two periodic forces, a low-frequency one (signal) and a high-frequency one (carrier). Vibrational resonance manifests itself in the fact that for optimally selected values of high-frequency force amplitude, the response of the system to a low-frequency signal is optimal. This phenomenon is a synthesis of two effects, a noise- induced phase transition leading to bistability, and a conventional vibrational resonance, resulting in the optimization of signal processing. Numerical simulations, which demonstrate this effect for an extended system, can be understood by means of a zero-dimensional "effective" model. The behavior of this "effective" model is also confirmed by an experimental realization of an electronic circuit.

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Metadaten
Author:Alexei A. Zaikin, L López, J. P. Baltanás, Jürgen KurthsORCiDGND, Miguel Angel Fernández Sanjuan
URL:http://link.aps.org/abstract/PRE/v66/e011106
Document Type:Article
Language:English
Year of first Publication:2002
Year of Completion:2002
Release Date:2017/03/24
Source:Physical review / E. - 66 (2002), Art.-Nr. 011106
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Institution name at the time of publication:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik