UnipiEprints
Università di Pisa
Sistema bibliotecario di ateneo

Adiabatic divergence of the chaotic layer width and acceleration of chaotic and noise-induced transport

Soskin, Stanislav Maratovich and Mannella, Riccardo and Yevtushenko, Oleg M. (2008) Adiabatic divergence of the chaotic layer width and acceleration of chaotic and noise-induced transport. Communications in Nonlinear Science and Numerical Simulation, 14/200 . ISSN 1007-5704 (In Press)

[img]
Preview
PDF
Download (1358Kb) | Preview

    Abstract

    SUMMARY We show that, in spatially periodic Hamiltonian systems driven by a time-periodic coordinate-independent (AC) force, the upper energy of the chaotic layer grows unlimitedly as the frequency of the force goes to zero. This remarkable effect is absent in any other physically significant systems. It gives rise to the divergence of the rate of the spatial chaotic transport. We also generalize this phenomenon for the presence of a weak noise and weak dissipation. We demonstrate for the latter case that the adiabatic AC force may greatly accelerate the spatial diffusion and the reset rate at a given threshold.

    Item Type: Article
    Uncontrolled Keywords: Adiabatic, chaos, transport, noise, diffusion, threshold
    Subjects: Area02 - Scienze fisiche > FIS/03 - Fisica della materia
    Divisions: Dipartimenti (until 2012) > DIPARTIMENTO DI FISICA " E. FERMI"
    Depositing User: Prof Riccardo Mannella
    Date Deposited: 10 Jul 2008
    Last Modified: 20 Dec 2010 11:56
    URI: http://eprints.adm.unipi.it/id/eprint/493

    Repository staff only actions

    View Item