Plasticity facilitates pattern selection of networks of chemical oscillations.

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ID: 30573
2019
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Abstract
Rotating wave synchronization patterns are explored with a ring of 20 electrochemical oscillators during nickel electrodissolution in sulfuric acid. With desynchronized initial states, coupling alone yields predominance of nonrotating solutions, i.e., in-phase synchronization. An experimental technique is presented in which, through a combination of temporary alterations in topology, the application of global feedback provides rotational solutions. With phase repulsive global feedback, the in-phase synchronization is destabilized and a rotating wave is obtained. This feedback induced rotating wave can be employed to establish an initial condition for the rotating wave with coupling only. Higher order rotating solutions with 2, 3, and 4 waves corotating around the ring are observed, where the initial conditions are generated by temporary network rewiring to a structure with 2, 3, and 4 loops, respectively, and by global feedback. The experimental observations are supported by numerical simulations with a phase model. The results indicate that while network plasticity is thought to be significant in the operation of neural systems, it can also play a role in pattern selection of chemical systems.
Reference Key
sebek2019plasticitychaos Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sebek, Michael;Kiss, István Z;
Journal chaos (woodbury, ny)
Year 2019
DOI
10.1063/1.5109784
URL
Keywords Keywords not found

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