Document Detail


Work-probability distribution in systems driven out of equilibrium.
MedLine Citation:
PMID:  16383475     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We derive the differential equation describing the time evolution of the work probability distribution function of a stochastic system which is driven out of equilibrium by the manipulation of a parameter. We consider both systems described by their microscopic state or by a collective variable which identifies a quasiequilibrium state. We show that the work probability distribution can be represented by a path integral, which is dominated by "classical" paths in the large system size limit. We compare these results with simulated manipulation of mean-field systems. We discuss the range of applicability of the Jarzynski equality for evaluating the system free energy using these out-of-equilibrium manipulations. Large fluctuations in the work and the shape of the work distribution tails are also discussed.
Authors:
A Imparato; L Peliti
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Publication Detail:
Type:  Journal Article     Date:  2005-10-14
Journal Detail:
Title:  Physical review. E, Statistical, nonlinear, and soft matter physics     Volume:  72     ISSN:  1539-3755     ISO Abbreviation:  Phys Rev E Stat Nonlin Soft Matter Phys     Publication Date:  2005 Oct 
Date Detail:
Created Date:  2005-12-30     Completed Date:  2006-02-01     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136452     Medline TA:  Phys Rev E Stat Nonlin Soft Matter Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  046114     Citation Subset:  -    
Affiliation:
Dipartimento di Scienze Fisiche and Unità INFM, Università Federico II, Associati INFN, Sezione di Napoli, Complesso Monte S. Angelo, I-80126 Napoli, Italy. imparato@na.infn.it
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