Soliton turbulence in one-dimensional cellular automata

Y. Aizawa, I. Nishikawa, K. Kaneko

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    Statistical properties of cellular automata which support simple solitary waves are numerically studied. Under these rules, spatio-temporal patterns are sensitively dependent on the collision processes of solitons, and other elementary excitations such as breathers, kinks, and nuclei. Patterns typically become randomized as collisions proceed. Turbulent states are realized after many collisions. The resulting global patterns can be classified by the types of elementary excitations they contain. In many turbulent states, the spectra reveal a long-range order with a k-v anomaly for k ≪ 1. The irreversible process leading to turbulent equilibrium is characterized by the transient spectrum together with the Allan variance. The mean free motion of a soliton in the turbulent states is measured by the mutual information flow, and the information loss is shown to obey an inverse power law. The transient time to reach an attractor grows exponentially with system size, which suggests that in the thermodynamic limit soliton turbulence is not an attractor but rather a transient state.

    Original languageEnglish
    Pages (from-to)307-327
    Number of pages21
    JournalPhysica D: Nonlinear Phenomena
    Volume45
    Issue number1-3
    DOIs
    Publication statusPublished - 1990 Sep 2

    ASJC Scopus subject areas

    • Applied Mathematics
    • Statistical and Nonlinear Physics

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