Pendulum as a model system for driven rotation in molecular nanoscale machines

Yaroslav Zolotaryuk, Peter Leth Christiansen, B. Nordén, A. V. Savin, Yaroslav Zolotaryuk

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    Abstract

    We suggest a ratchet mechanism of rotatory (or translatory) motion of a Brownian rotator (or a particle) in a spatially symmetric periodic potential. The asymmetry that drives the ratchet motion is due to a special sequence of activation of catalytic sites arranged in space circularly and periodically. A pendulum driven by short impulses at its stable equilibrium point is shown to be a simple mechanical model which can be constructed easily and used for visual observation of the ratchet rotation. A possible application of this mechanism in nanotechnology is briefly discussed.
    Original languageEnglish
    JournalPhysical Review E. Statistical, Nonlinear, and Soft Matter Physics
    Volume61
    Issue number3
    Pages (from-to)3256-3259
    ISSN1063-651X
    DOIs
    Publication statusPublished - 2000

    Bibliographical note

    Copyright (2000) by the American Physical Society.

    Keywords

    • FLUCTUATIONS
    • MOTION
    • ATP SYNTHASE
    • F1-ATPASE
    • PARTICLES
    • WHITE-NOISE
    • PERIODIC POTENTIALS
    • RATCHETS
    • DOUBLE-WELL SYSTEM
    • NOISE-INDUCED TRANSPORT

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