Destruction of spiral waves in chaotic media

Publication Type:

Journal Article

Authors:

Source:

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Volume 73, Number 2 (2006)

URL:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-33644545089&doi=10.1103%2fPhysRevE.73.026224&partnerID=40&md5=350d1c5f4b281665bd2d64bb6a7d0090

Keywords:

Chaos theory, Chaotic media, Diffusion, Nonlinear equations, Reaction diffusion equation, Spiral waves

Abstract:

Spiral-wave breakup in strongly chaotic media with nonphase-coherent chaotic attractors is investigated. Spiral-wave dynamics is studied for the Rössler reaction diffusion equation as the local attractor changes from a phase-coherent to a funnel form. Stable spiral waves with an Archimedean structure are observed to persist even when the local chaotic attractor has a funnel form. The destruction of funnel spiral waves in strongly chaotic media is induced by the strong phase disturbance of the local nonlinear chaotic dynamics, which breaks the stable Archimedean spiral structure and globally destroys the spatial pattern. © 2006 The American Physical Society.

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