Emergence of chimeras through induced multistability

Sangeeta Rani Ujjwal, Nirmal Punetha, Awadhesh Prasad, Ramakrishna Ramaswamy

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Chimeras, namely coexisting desynchronous and synchronized dynamics, are formed in an ensemble of identically coupled identical chaotic oscillators when the coupling induces multiple stable attractors, and further when the basins of the different attractors are intertwined in a complex manner. When there is coupling-induced multistability, an ensemble of identical chaotic oscillators - with global coupling, or also under the influence of common noise or an external drive (chaotic, periodic, or quasiperiodic) - inevitably exhibits chimeric behavior. Induced multistability in the system leads to the formation of distinct subpopulations, one or more of which support synchronized dynamics, while in others the motion is asynchronous or incoherent. We study the mechanism for the emergence of such chimeric states, and we discuss the generality of our results.

Original languageEnglish
Article number032203
JournalPhysical Review E
Volume95
Issue number3
DOIs
StatePublished - 7 Mar 2017
Externally publishedYes

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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