Journal
PHYSICS LETTERS A
Volume 324, Issue 5-6, Pages 450-457Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2004.03.017
Keywords
phase synchronization; globally coupled maps
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The study of inhomogeneous-coupled chaotic systems has attracted a lot of attention recently. With simple definition of phase, we present the phase-locking behavior in ensembles of globally coupled non-identical maps. The inhomogeneous globally coupled maps consist of logistic map and tent map simultaneously. Average phase synchronization ratios, which are used to characterize the phase coherent phenomena, depend on different coupling coefficients and chaotic parameters. By using interdependence, the relationship between a single unit and the mean field is illustrated. Moreover, we take the effect of external noise and parameter mismatch into consideration and present the results by numerical simulation. (C) 2004 Elsevier B.V. All rights reserved.
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