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Bistable oscillator dynamics driven by nonwhite noise.

Fronzoni, L. and Grigolinui, P. and Hanggi, P. and Moss, F. and McClintock, Peter V. E. (1986) Bistable oscillator dynamics driven by nonwhite noise. Physical Review A, 33 (5). pp. 3320-3327. ISSN 1050-2947

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Abstract

We obtain here an approximate, nonlinear Fokker-Planck-type equation which offers an improved model for two-dimensional nonequilibrium, bistable flows driven by exponentially correlated Gaussian noise. The new model accurately predicts the renormalization of the phase-space statistical densities P(x,v) with correlation time. The theory is tested for accuracy by both analog electronic and digital simulations of a damped oscillator with a bistable potential, driven by additive, colored noise. For large noise strengths, the improved theoretical scheme is applicable for small noise correlation times tau, but becomes increasingly better for small noise strengths where its accuracy extends even tolarge noise correlation times. The crossover to overdamped motion is also discussed.

Item Type: Article
Journal or Publication Title: Physical Review A
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 32368
Deposited By: Professor P. V. E. McClintock
Deposited On: 23 Mar 2010 13:43
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 17:09
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/32368

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