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  • 1
    ISSN: 1572-9613
    Keywords: Localization ; invariant tori ; KAM theory ; disordered systems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We study localization and wave trapping in disordered, nonlinear dynamical systems. For some models of classical, disordered anharmonic crystal lattices, we prove that, with large probability, there are quasiperiodic lattice vibrations of finite total energy which lie on some infinite-dimensional, compact invariant tori in phase space. Such vibrations remain localized, for all times, and there is no transport of energy through the lattice. Our general concepts and techniques extend to other systems, such as disordered, nonlinear Schrödinger equations, or randomly coupled rotors.
    Type of Medium: Electronic Resource
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