Coexistence of synchrony and incoherence in oscillatory media under nonlinear global coupling.

We report a novel mechanism for the formation of chimera states, a peculiar spatiotemporal pattern with coexisting synchronized and incoherent domains found in ensembles of identical oscillators. Considering Stuart-Landau oscillators, we demonstrate that a nonlinear global coupling can induce this symmetry breaking. We find chimera states also in a spatially extended system, a modified complex Ginzburg-Landau equation. This theoretical prediction is validated with an oscillatory electrochemical system, the electro-oxidation of silicon, where the spontaneous formation of chimeras is observed without any external feedback control.

• Publication year

  2013

• Venue

  Chaos

• Publication date

  2013-12-11

• Fields of study

  Mathematics, Physics, Medicine

• Identifiers
  DOI 10.1063/1.4858996arXiv 1312.3166PMID 24697364
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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