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Short time scales in the Kramers problem: a stepwise growth of the escape flux.
MedLine Citation:
PMID:  11290219     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We prove rigorously and demonstrate in simulations that, for a potential system staying initially at the bottom of a well, the escape flux over the barrier grows on times of the order of a period of eigenoscillation in a stepwise manner, provided that friction is small or moderate. If the initial state is not at the bottom of the well, then, typically, some of the steps transform into oscillations. The stepwise/oscillatory evolution at short times appears to be a generic feature of a noise-induced flux.
Authors:
S M Soskin; V I Sheka; T L Linnik; R Mannella
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Physical review letters     Volume:  86     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2001 Feb 
Date Detail:
Created Date:  2001-04-06     Completed Date:  2001-05-24     Revised Date:  2003-10-31    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1665-9     Citation Subset:  -    
Affiliation:
Institute of Semiconductor Physics, Ukrainian National Academy of Sciences, Kiev, Ukraine.
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