Spiral wave chimera in two-dimensional nonlocally coupled Fitzhugh–Nagumo systems

Shuangjian Guo, Qionglin Dai, Hongyan Cheng, Haihong Li, Fagen Xie and Junzhong Yang

Chaos, Solitons & Fractals, 2018, vol. 114, issue C, 394-399

Abstract: Spiral wave chimeras with spatially extended unsynchronized cores have been reported in nonlocally coupled phase oscillators and chaotic oscillators. Here, we investigate the two-dimensional nonlocally coupled FitzHugh–Nagumo oscillators with open boundary conditions. Rich dynamics of spiral wave chimeras is discovered numerically. Besides outwardly propagating and inwardly propagating single-spiral wave chimeras, we find the double-spiral wave chimera with two spiral chimeras rotating with each other and the breakup of spiral wave chimeras. We also find a transition between a normal spiral wave with a phase singularity at its center and spiral wave chimera.

Keywords: Chimera; Spiral wave chimera; Fitzhugh–Nagumo oscillators (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:114:y:2018:i:c:p:394-399

DOI: 10.1016/j.chaos.2018.07.029

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