Noise-induced multimode behavior in excitable systems.
Based on experiments with electronic circuits, we show how a system of coupled excitable units can possess several noise-induced oscillatory modes. We characterize the multimode organization in terms of the coherence resonance effect. Multiple gain of regularity is found to be related to different frequency entrainments and to the appearance of additional time scales.
Postnov
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DE
Physics Department, Saratov State University, Astrakhanskaya Street 83, Saratov 410026, Russia.
Sosnovtseva
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Han
S K
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Kim
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WS