| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8253389 | Chaos, Solitons & Fractals | 2018 | 6 Pages |
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
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Statistical and Nonlinear Physics
Authors
Shuangjian Guo, Qionglin Dai, Hongyan Cheng, Haihong Li, Fagen Xie, Junzhong Yang,