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Noise induced propagation in monostable media

Zaikin, AA; Garcia-Ojalvo, J; Schimansky-Geier, L; Kurths, J; (2002) Noise induced propagation in monostable media. PHYS REV LETT , 88 (1) , Article 010601. 10.1103/PhysRevLett.88.010601. Green open access

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Abstract

We show that external fluctuations are able to induce propagation of harmonic signals through monostable media. This property is based on the phenomenon of doubly stochastic resonance, where the joint action of multiplicative noise and spatial coupling induces bistability in an otherwise monostable extended medium, and additive noise resonantly enhances the response of the system to a harmonic forcing. Under these conditions, propagation of the harmonic signal through the unforced medium is observed for optimal intensities of the two noises. This noise-induced propagation is studied and quantified in a simple model of coupled nonlinear electronic circuits.

Type: Article
Title: Noise induced propagation in monostable media
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.88.010601
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.88.010601
Language: English
Keywords: SPATIOTEMPORAL STOCHASTIC RESONANCE, SWIFT-HOHENBERG EQUATION, ENHANCED PROPAGATION, PHASE-TRANSITION, BISTABLE SYSTEMS, ARRAY, CIRCUITS, DRIVEN, MODEL, WHITE
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL EGA Institute for Womens Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL EGA Institute for Womens Health > Womens Cancer
URI: https://discovery.ucl.ac.uk/id/eprint/116939
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