Dynamical quorum sensing and synchronization in collections of excitable and oscillatory catalytic particles

Tinsley, M.R., Taylor, A.F., Huang, Z., Wang, F. and Showalter, K. (2010) Dynamical quorum sensing and synchronization in collections of excitable and oscillatory catalytic particles. Physica D: Nonlinear Phenomena, 239 (11), 785-790. (doi:10.1016/j.physd.2009.08.001).

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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Contributors

Author: A.F. Taylor

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