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Published on: May 29, 2018
Stable Chimeras and Independently Synchronizable Clusters
Young Sul Cho1,2, Takashi Nishikawa1,3, Adilson E Motter1,3
1Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA.
Abstract:
Cluster synchronization is a phenomenon in which a network self-organizes into a pattern of synchronized sets. It has been shown that diverse patterns of stable cluster synchronization can be captured by symmetries of the network. Here, we establish a theoretical basis to divide an arbitrary pattern of symmetry clusters into independently synchronizable cluster sets, in which the synchronization stability of the individual clusters in each set is decoupled from that in all the other sets. Using this framework, we suggest a new approach to find permanently stable chimera states by capturing two or more symmetry clusters-at least one stable and one unstable-that compose the entire fully symmetric network.
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