Dynamics importance sampling for the activation problem in nonequilibrium continuous systems and maps

Beri, S. and Mannella, R. and McClintock, Peter V. E. (2004) Dynamics importance sampling for the activation problem in nonequilibrium continuous systems and maps. Proceedings of SPIE, 5471. pp. 135-144. ISSN 0277-786X

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Abstract

A numerical approach based on dynamic importance sampling (DIMS) is introduced to investigate the activation problem in two-dimensional nonequilibrium systems. DIMS accelerates the simulations and allows the investigation to access noise intensities that were previously forbidden. A shift in the position of the escape path compared to a heteroclinic trajectory calculated in the limit of zero noise intensity is directly observed. A theory to account for such shifts is presented and shown to agree with the simulations for a wide range of noise intensities.

Item Type: Journal Article
Journal or Publication Title: Proceedings of SPIE
Additional Information: Copyright 2004 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. http://dx.doi.org/10.1117/12.546889
Uncontrolled Keywords: /dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 25496
Deposited By: ep_ss_importer
Deposited On: 18 Mar 2009 13:15
Refereed?: No
Published?: Published
Last Modified: 20 Sep 2019 00:37
URI: https://eprints.lancs.ac.uk/id/eprint/25496

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