Clusters and switchers in globally coupled photochemical oscillators |
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Authors: | Taylor Annette F Kapetanopoulos Panagiotis Whitaker Benjamin J Toth Rita Bull Larry Tinsley Mark R |
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Institution: | School of Chemistry, University of Leeds, Leeds LS2 9JT, United Kingdom. A.F.Taylor@leeds.ac.uk |
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Abstract: | We experimentally investigate the transition to synchronization in a population of photochemical oscillators with weak global coupling. Above a critical coupling strength the oscillators join a one-phase group or two-phase clusters. The number of oscillators in each cluster depends on the initial phase distribution, and irregular switching of oscillators between clusters is observed. The fully synchronized state emerges above a second critical coupling strength. In agreement with earlier theory, the experiments demonstrate the importance of population heterogeneity in cluster multistability. |
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