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Springer Verlag, Journal of Statistical Physics, 3(145), p. 745-762

DOI: 10.1007/s10955-011-0315-7

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Phase fluctuations in the ABC model

Journal article published in 2011 by Thierry Bodineau, Bernard Derrida
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We analyze the fluctuations of the steady state profiles in the modulated phase of the ABC model. For a system of $L$ sites, the steady state profiles move on a microscopic time scale of order $L^3$. The variance of their displacement is computed in terms of the macroscopic steady state profiles by using fluctuating hydrodynamics and large deviations. Our analytical prediction for this variance is confirmed by the results of numerical simulations.