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Thermally activated escape of driven systems:the activation energy

Luchinsky, D. G. and Mannella, R. and McClintock, Peter V. E. and Dykman, M. and Smelyanskiy, V. N. (1999) Thermally activated escape of driven systems:the activation energy. Journal of Physics -London- a Mathematical and General, 32 (27). L321-L327. ISSN 0305-4470

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    Abstract

    Thermally activated escape in the presence of a periodic external field is investigated theoretically and through analogue experiments and digital simulations. The observed variation of the activation energy for escape with driving force parameters is accurately described by the logarithmic susceptibility (LS). The frequency dispersion of the LS is shown to differ markedly from the standard linear susceptibility. Experimental data on the dispersion are in quantitative agreement with the theory. Switching between different branches of the activation energy is demonstrated for a nonsinusoidal (biharmonic) force.

    Item Type: Article
    Journal or Publication Title: Journal of Physics -London- a Mathematical and General
    Subjects: Q Science > QC Physics
    Departments: Faculty of Science and Technology > Physics
    ID Code: 31959
    Deposited By: Professor P. V. E. McClintock
    Deposited On: 08 Mar 2010 14:05
    Refereed?: Yes
    Published?: Published
    Last Modified: 18 Jun 2015 05:27
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/31959

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