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Article Dans Une Revue Annales de l'Institut Henri Poincaré (B) Probabilités et Statistiques Année : 2024

Steady state large deviations for one-dimensional, symmetric exclusion processes in weak contact with reservoirs

Résumé

Consider the symmetric exclusion process evolving on an interval and weakly interacting at the end-points with reservoirs. Denote by $I_{[0,T]} (\cdot)$ its dynamical large deviations functional and by $V(\cdot)$ the associated quasi-potential, defined as $V(\gamma) = \inf_{T>0} \inf_u I_{[0,T]} (u)$, where the infimum is carried over all trajectories $u$ such that $u(0) = \bar\rho$, $u(T) = \gamma$, and $\bar\rho$ is the stationary density profile. We derive the partial differential equation which describes the evolution of the optimal trajectory, and deduce from this result the formula obtained by Derrida, Hirschberg and Sadhu \cite{DHS2021} for the quasi-potential through the representation of the steady state as a product of matrices.

Dates et versions

hal-03897408 , version 1 (13-12-2022)

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Angèle Bouley, Clément Erignoux, Claudio Landim. Steady state large deviations for one-dimensional, symmetric exclusion processes in weak contact with reservoirs. Annales de l'Institut Henri Poincaré (B) Probabilités et Statistiques, In press. ⟨hal-03897408⟩
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