Experimental studies of the non-adiabatic escape problem

Arrayas, M., Khovanov, I. A., Luchinsky, D. G. , Mannella, R., McClintock, P. V. E., Greenall, M. and Sabbagh, H. (2000) Experimental studies of the non-adiabatic escape problem. AIP Conference Proceedings, 502 (20). ISSN 0094-243X

AIPlakes2000ExperimentalStudies.pdf - Whole Document

Item Type:Article
Item Status:Live Archive


Noise-induced transitions between coexisting stable states of a periodically driven nonlinear oscillator have been investigated by means of analog experiments and numerical simulations in the nonadiabatic limit for a wide range of oscillator parameters. It is shown that, for over-damped motion, the field-induced corrections to the activation energy can be described quantitatively in terms of the logarithmic susceptibility (LS) and that the measured frequency dispersion of the corresponding corrections for a weakly damped nonlinear oscillator is in qualitative agreement with the theoretical prediction. Resonantly directed diffusion is observed in numerical simulations of a weakly damped oscillator. The possibility of extending the LS approach to encompass escape from the basin of attraction of a quasi-attractor is discussed.

Additional Information:Conference date: August, 1999 Location: Ambleside, Cumbria (UK)
Keywords:Statistical physics, Brownian ratchets
Subjects:F Physical Sciences > F300 Physics
Divisions:College of Science > School of Mathematics and Physics
Related URLs:
ID Code:22438
Deposited On:05 Mar 2016 22:16

Repository Staff Only: item control page