Regensburg 2016 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 26: Symposium - Chimera States: Coherence-Incoherence Patterns in Complex Networks (SYCS)

BP 26.4: Hauptvortrag

Dienstag, 8. März 2016, 11:15–11:45, H1

Synchronization in Populations of Chemical Oscillators: Phase Clusters and Chimeras — •Kenneth Showalter — West Virginia University, Morgantown, USA

We have studied heterogeneous populations of chemical oscillators to characterize different types of synchronization behavior. The formation of phase clusters in stirred suspensions of Belousov-Zhabotinsky oscillators is described, where the (global) coupling occurs through the medium. We then describe the formation of phase clusters and chimera states in populations of photosensitive oscillators. The nonlocal coupling occurs via illumination intensity that is dependent on the state of each oscillator. The behavior of oscillators in ring configurations as a function of the number of oscillators is described, including traveling cluster states.

References: A. F. Taylor et al., Angewandte Chemie Int. Ed. 50, 10161 (2011); M. R. Tinsley et al., Nature Physics 8, 662 (2012); S. Nkomo et al., Phys. Rev. Lett. 110, 244102 (2013); J. F. Totz et al., Phys. Rev. E 92, 022819 (2015).