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Phase synchronization in coupled nonidentical excitable systems and array-enhanced coherence resonance

Bambi Hu and Changsong Zhou
Phys. Rev. E 61, R1001(R) – Published 1 February 2000
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Abstract

We study the dynamics of a lattice of coupled nonidentical Fitz Hugh-Nagumo system subject to independent external noise. It is shown that these stochastic oscillators can lead to global synchronization behavior without an external signal. With the increase of the noise intensity, the system exhibits coherence resonance behavior. Coupling can enhance greatly the noise-induced coherence in the system.

  • Received 28 September 1999

DOI:https://doi.org/10.1103/PhysRevE.61.R1001

©2000 American Physical Society

Authors & Affiliations

Bambi Hu1,2 and Changsong Zhou1

  • 1Department of Physics and Centre for Nonlinear Studies, Hong Kong Baptist University, Hong Kong, China
  • 2Department of Physics, University of Houston, Houston, Texas 77204

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Vol. 61, Iss. 2 — February 2000

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