Non-transitive maps in phase synchronization

نویسندگان

  • M. S. Baptista
  • T. Pereira
  • J. C. Sartorelli
  • I. L. Caldas
  • J. Kurths
چکیده

Concepts from Ergodic Theory are used to describe the existence of special nontransitive maps in attractors of phase synchronous chaotic oscillators. In particular, it is shown that for a class of phase-coherent oscillators, these special maps imply phase synchronization. We illustrate these ideas in the sinusoidally forced Chua’s circuit and two coupled Rössler oscillators. Furthermore, these results are extended to other coupled chaotic systems. In addition, a phase for a chaotic attractor is defined from the tangent vector of the flow. Finally, it is discussed how these maps can be used to a real-time detection of phase synchronization in experimental systems.

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تاریخ انتشار 2005