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.
Author details: | Alexei A. Zaikin, L López, J. P. Baltanás, Jürgen KurthsORCiDGND, Miguel Angel Fernández Sanjuan |
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URL: | http://link.aps.org/abstract/PRE/v66/e011106 |
Publication type: | Article |
Language: | English |
Year of first publication: | 2002 |
Publication year: | 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 the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik |