• Intermittency in delay-coupled FitzHugh–Nagumo oscillators and loss of phase synchrony as its precursor

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    • Keywords


      Delay coupling; on-off intermittency; precursors

    • Abstract


      We study the dynamical properties of in-out intermittency in a system of two identical FitzHugh–Nagumo oscillators coupled by multiple time delays. In this system, the intermittency is manifested as irregular switching between a nearly synchronous state with small and large amplitude chaotic oscillations and a highly asynchronous state with a single large amplitude oscillation. We show that loss of phase synchrony significantly prior to the occurrence of the asynchronous large amplitude oscillation can be used as a precursor to the switching of states in such systems.

      PACS Nos 05.45.-a

    • Author Affiliations



      1. Theoretical Physics/Complex Systems, ICBM, University of Oldenburg, 26129 Oldenburg, Germany
    • Dates

  • Indian Academy of Sciences
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