Modulating coherence resonance in non-excitable systems by time-delayed feedback

Paul M. Geffert, Anna Zakharova, Andrea Vüllings, Wolfram Just and Eckehard Schöll ()

The European Physical Journal B: Condensed Matter and Complex Systems, 2014, vol. 87, issue 12, 1-13

Abstract: We propose a paradigmatic model system, a subcritical Hopf normal form subjected to noise and time-delayed feedback, to investigate the impact of time delay on coherence resonance in non-excitable systems. We develop analytical tools to estimate the stationary distribution and the time correlations in nonlinear stochastic delay differential equations. These tools are applied to our model to propose a novel quantity to measure coherence resonance induced by a saddle-node bifurcation of periodic orbits. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2014

Keywords: Statistical and Nonlinear Physics (search for similar items in EconPapers)
Date: 2014
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Citations: View citations in EconPapers (6)

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DOI: 10.1140/epjb/e2014-50541-2

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