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Noise delayed decay of unstable states: theory versus numerical simulations

Agudov, N. V. and Mannella, R. and Safonov, A. V. and Spagnolo, B. (2004) Noise delayed decay of unstable states: theory versus numerical simulations. Journal of Physics A: Mathematical and General, 37 (20). 5279 -5287. ISSN 1361-6447

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SUMMARY We study the noise delayed decay of unstable nonequilibrium states in nonlinear dynamical systems within the framework of the overdamped Brownian motion model. We give the exact expressions for the decay times of unstable states for polynomial potential profiles and obtain nonmonotonic behavior of the decay times as a function of the noise intensity for the unstable nonequilibrium states. The analytical results are compared with numerical simulations.

Item Type: Article
Additional Information: Imported from arXiv
Subjects: Area02 - Scienze fisiche > FIS/03 - Fisica della materia
Divisions: Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA
Depositing User: dott.ssa Sandra Faita
Date Deposited: 06 Aug 2013 13:20
Last Modified: 06 Aug 2013 13:20
URI: http://eprints.adm.unipi.it/id/eprint/1440

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