Coherence versus reliability of stochastic oscillators with delayed feedback

Details Coherence versus reliability of stochastic oscillators with delayed feedback Coherence versus reliability of stochastic oscillators with delayed feedback

2008-06-16

arxiv.org/abs/0806.2542v2

Physical Review E, Vol.78, n.6, 060104(R) (2008)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevE.78.060104

For noisy self-sustained oscillators, both reliability, stability of a response to a noisy driving, and coherence understood in the sense of constancy of oscillation frequency belong to the main characteristics. Though the both characteristics and techniques for controlling them received great attention of researchers, owing to their importance for neurons, lasers, clocks, electric generators, etc., these characteristics were previously considered separately. In this paper, strong quantitative relation between coherence and reliability is revealed for a limit cycle oscillator subject to a weak noisy driving and a linear delayed feedback, a convectional control tool. Analytical findings are verified and enriched with a numerical simulation for the Van der Pol-Duffing oscillator.

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