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arXiv · 2405.06833

Impact of pulse exposure on chimera state in ensemble of FitzHugh-Nagumo systems

Elena Rybalova·Nadezhda Semenova
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Abstract

In this article we consider the influence of a periodic sequence of Gaussian pulses on a chimera state in a ring of coupled FitzHugh-Nagumo systems. We found that on the way to complete spatial synchronization one can observe a number of variations of chimera states that are not typical for the parameter range under consideration. For example, the following modes were found: breathing chimera, chimera with intermittency in the incoherent part, traveling chimera with strong intermittency, and others. For comparison, here we also consider the impact of a harmonic influence on the same chimera, and to preserve the generality of the conclusions, we compare the regimes caused by both a purely positive harmonic influence and a positive-negative one.

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Elena Rybalova, Nadezhda Semenova. 2024-05-10. Impact of pulse exposure on chimera state in ensemble of FitzHugh-Nagumo systems. https://doi.org/10.1063/5.0214787

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