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Proceedings Paper

Nonequilibrium distribution at finite noise intensity
Author(s): Andriy Bandrivskyy; Stefano Beri; Dmitry G Luchinsky
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Paper Abstract

The non-equilibrium distribution in dissipative dynamical systems with unstable limit cycle is analyzed in the next-to-leading order of the small-noise approximation of the Fokker-Planck equation. The noise-induced variations of the non-equilibrium distribution are described in terms of topological changes in the pattern of optimal paths. It is predicted that singularities in the pattern of optimal paths are shifted and cross the basin boundary in the presence of finite noise. As a result the probability distribution oscillates at the basin boundary. Theoretical predictions are in good agreement with the results of numerical solution of the Fokker-Planck equation and Monte Carlo simulations.

Paper Details

Date Published: 7 May 2003
PDF: 8 pages
Proc. SPIE 5114, Noise in Complex Systems and Stochastic Dynamics, (7 May 2003); doi: 10.1117/12.488981
Show Author Affiliations
Andriy Bandrivskyy, Lancaster Univ. (United Kingdom)
Stefano Beri, Lancaster Univ. (United Kingdom)
Dmitry G Luchinsky, Lancaster Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 5114:
Noise in Complex Systems and Stochastic Dynamics
Lutz Schimansky-Geier; Derek Abbott; Alexander Neiman; Christian Van den Broeck, Editor(s)

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