Identification of single- and double-well coherence-incoherence patterns by the binary distance matrix

Vagner dos Santos; Matheus Rolim Sales; Sishu Shankar Muni; José D. Szezech Jr; Antonio Marcos Batista; Serhiy Yanchuk; Jürgen Kurths

doi:10.1016/j.cnsns.2023.107390

arXiv · 2211.11454

Identification of single- and double-well coherence-incoherence patterns by the binary distance matrix

Vagner dos Santos·Matheus Rolim Sales·Sishu Shankar Muni·José D. Szezech Jr·Antonio Marcos Batista·Serhiy Yanchuk·Jürgen Kurths

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Abstract

The study of chimera states or, more generally, coherence-incoherence patterns has led to the development of several tools for their identification and characterization. In this work, we extend the eigenvalue decomposition method to distinguish between single-well and double-well patterns. By applying our method, we are able to identify the following four types of dynamical patterns in a ring of nonlocally coupled Chua circuits and nonlocally coupled cubic maps: single-well cluster, single-well coherence-incoherence pattern, double-well cluster, and double-well coherence-incoherence. In a ring-star network of Chua circuits, we investigate the influence of adding a central node on the spatio-temporal patterns. Our results show that increasing the coupling with the central node favors the occurrence of single-well coherence-incoherence states. We observe that the boundaries of the attraction basins resemble fractal and riddled structures

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Vagner dos Santos, Matheus Rolim Sales, Sishu Shankar Muni, José D. Szezech Jr, Antonio Marcos Batista, Serhiy Yanchuk, Jürgen Kurths. 2022-11-21. Identification of single- and double-well coherence-incoherence patterns by the binary distance matrix. https://doi.org/10.1016/j.cnsns.2023.107390

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