Clustered chimera states in delay-coupled oscillator systems

We investigate chimera states in a ring of identical phase oscillators coupled in a time-delayed and spatially nonlocal fashion. We find novel clustered chimera states that have spatially distributed phase coherence separated by incoherence with adjacent coherent regions in antiphase. The existence...

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Bibliographic Details
Published in:Physical review letters 2008-04, Vol.100 (14), p.144102-144102, Article 144102
Main Authors: Sethia, Gautam C, Sen, Abhijit, Atay, Fatihcan M
Format: Article
Language:English
Subjects:
Biological Clocks
Computer Simulation
Models, Theoretical
Time Factors
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Summary:We investigate chimera states in a ring of identical phase oscillators coupled in a time-delayed and spatially nonlocal fashion. We find novel clustered chimera states that have spatially distributed phase coherence separated by incoherence with adjacent coherent regions in antiphase. The existence of such time-delay induced phase clustering is further supported through solutions of a generalized functional self-consistency equation of the mean field. Our results highlight an additional mechanism for cluster formation that may find wider practical applications.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.100.144102