Asymmetric Target Patterns in One-Dimensional Oscillatory Media with Genuine Nonlocal Coupling

F. Plenge, H. Varela, and K. Krischer
Phys. Rev. Lett. 94, 198301 – Published 17 May 2005
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Abstract

We report the observation of a self-organized asymmetric wave source in a one-dimensional (1D) electrochemical system, namely, the hydrogen oxidation reaction on Pt in the presence of poisons. Numerical simulations reveal that the nonlocal migration coupling is crucial for the endogenous persistence of the perturbation that causes the asymmetry. Experiments and simulations agree perfectly for the regular and irregular variant of these asymmetric waves, manifesting the existence of nonlocal coupling induced patterns also in physical systems.

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  • Received 14 October 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.198301

©2005 American Physical Society

Authors & Affiliations

F. Plenge1, H. Varela2, and K. Krischer2,*

  • 1Fritz–Haber–Institute of the Max-Planck-Society, Faradayweg 4-6, 14195 Berlin, Germany
  • 2Physik Department E19, TU München, James-Franck-Str. 1, 85748 Garching, Germany

  • *Electronic address: krischer@ph.tum.de URL: http://www1.physik.tu-muenchen.de/lehrstuehle/e19/krischer.html

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Issue

Vol. 94, Iss. 19 — 20 May 2005

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