Intermittent Switching between Soliton Dynamic States in a Perturbed Sine-Gordon Model

Mads Peter Sørensen, N. Arley, Peter Leth Christiansen, R. D. Parmentier, Ove Skovgaard

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    Chaotic intermittency between soliton dynamic states has been found in a perturbed sine-Gordon system in the absence of an external ac driving term. The system is a model of a long Josephson oscillator with constant loss and bias current in an external magnetic field. The results predict the existence of a current step between the first two Fiske steps in the current-voltage characteristic. A simple probability model demonstrates an asymmetry in the statistical nature of the switching in the two directions.
    Original languageEnglish
    JournalPhysical Review Letters
    Issue number20
    Pages (from-to)1919-1922
    Publication statusPublished - 1983

    Bibliographical note

    Copyright (1983) by the American Physical Society.

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