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Current fluctuations in non-equilibrium diffusive systems: an additivity principle | T. Bodineau
; B. Derrida
; | Date: |
11 Feb 2004 | Subject: | Statistical Mechanics | cond-mat.stat-mech | Abstract: | We formulate a simple additivity principle allowing to calculate the whole distribution of current fluctuations through a large one dimensional system in contact with two reservoirs at unequal densities from the knowledge of its first two cumulants. This distribution (which in general is non-Gaussian) satisfies the Gallavotti-Cohen symmetry and generalizes the one predicted recently for the symmetric simple exclusion process. The additivity principle can be used to study more complex diffusive networks including loops. | Source: | arXiv, cond-mat/0402305 | Services: | Forum | Review | PDF | Favorites |
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