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American Physical Society, Physical Review Letters, 12(96), 2006

DOI: 10.1103/physrevlett.96.120603

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Direct evaluation of large deviation functions

Journal article published in 2006 by Cristian Giardinà, Jorge Kurchan, Luca Peliti ORCID
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This paper is available in a repository.

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Abstract

We introduce a numerical procedure to evaluate directly the probabilities of large deviations of physical quantities, such as current or density, that are local in time. The large-deviation functions are given in terms of the typical properties of a modified dynamics, and since they no longer involve rare events, can be evaluated efficiently and over a wider ranges of values. We illustrate the method with the current fluctuations of the Totally Asymmetric Exclusion Process and with the work distribution of a driven Lorentz gas.