Dynamical quorum sensing and synchronization in collections of excitable and oscillatory catalytic particles |
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Authors: | MR Tinsley Z Huang K Showalter |
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Institution: | a C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, WV 26506, USA b Department of Chemistry, University of Leeds, Leeds LS2 9JT, UK |
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Abstract: | We present experimental studies of interacting excitable and oscillatory catalytic particles in well-stirred and spatially distributed systems. A number of distinct paths to synchronized oscillatory behavior are described. We present an example of a Kuramoto type transition in a well-stirred system with a collective rhythm emerging on increasing the number density of oscillatory particles. Groups of spatially distributed oscillatory particles become entrained to a common frequency by organizing centers. Quorum sensing type transitions are found in populations of globally and locally coupled excitable particles, with a sharp transition from steady state to fully synchronized behavior at a critical density or group size. |
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Keywords: | Quorum sensing Synchronization Belousov-Zhabotinsky |
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