Journal
PHYSICA D-NONLINEAR PHENOMENA
Volume 239, Issue 11, Pages 785-790Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physd.2009.08.001
Keywords
Quorum sensing; Synchronization; Belousov-Zhabotinsky
Categories
Funding
- National Science Foundation [CHE-0809058]
- EPSRC [GR/T11036/01]
- Engineering and Physical Sciences Research Council [GR/T11036/01] Funding Source: researchfish
- Direct For Mathematical & Physical Scien [0809058] Funding Source: National Science Foundation
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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. (C) 2009 Elsevier B.V. All rights reserved.
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