Switching between bistable states in a discrete nonlinear model with long-range dispersion

Magnus Johansson, Yuri B. Gaididei, Peter Leth Christiansen, Kim Rasmussen

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    Abstract

    In the framework of a discrete nonlinear Schrodinger equation with long-range dispersion, we propose a general mechanism for obtaining a controlled switching between bistable localized excitations. We show that the application of a spatially symmetric kick leads to the excitation of an internal breathing mode and that switching between narrow, pinned states and broad, mobile states with only small radiative losses occurs when the kick strength exceeds a threshold value. This mechanism could be important for controlling energy storage and transport in molecular systems.
    Original languageEnglish
    JournalPhysical Review E. Statistical, Nonlinear, and Soft Matter Physics
    Volume57
    Issue number4
    Pages (from-to)4739-4742
    ISSN1063-651X
    DOIs
    Publication statusPublished - 1998

    Bibliographical note

    Copyright (1998) by the American Physical Society.

    Keywords

    • SELF-TRAPPING EQUATION
    • DNA
    • STABILITY
    • SOLITONS

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