From quenched invariance principle to semigroup convergence with applications to exclusion processes

Fuente: arXiv
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Autori principali: Chiarini, Alberto, Floreani, Simone, Sau, Federico
Natura: Preprint
Pubblicazione: 2023
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author Chiarini, Alberto
Floreani, Simone
Sau, Federico
author_facet Chiarini, Alberto
Floreani, Simone
Sau, Federico
contents Consider a random walk on $\mathbb{Z}^d$ in a translation-invariant and ergodic random environment and starting from the origin. In this short note, assuming that a quenched invariance principle for the opportunely-rescaled walks holds, we show how to derive an $L^1$-convergence of the corresponding semigroups. We then apply this result to obtain a quenched pathwise hydrodynamic limit for the simple symmetric exclusion process on $\mathbb{Z}^d$, $d\ge 2$, with i.i.d. symmetric nearest-neighbors conductances $ω_{xy}\in [0,\infty)$ only satisfying $$\mathbb{Q}(ω_{xy}>0)>p_c\ ,$$ where $p_c$ is the critical value for bond percolation.
format Preprint
id arxiv_https___arxiv_org_abs_2303_04127
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle From quenched invariance principle to semigroup convergence with applications to exclusion processes
Chiarini, Alberto
Floreani, Simone
Sau, Federico
Probability
Mathematical Physics
60K35, 60K37, 60G22, 35B27, 60F17, 82C41, 82B43
Consider a random walk on $\mathbb{Z}^d$ in a translation-invariant and ergodic random environment and starting from the origin. In this short note, assuming that a quenched invariance principle for the opportunely-rescaled walks holds, we show how to derive an $L^1$-convergence of the corresponding semigroups. We then apply this result to obtain a quenched pathwise hydrodynamic limit for the simple symmetric exclusion process on $\mathbb{Z}^d$, $d\ge 2$, with i.i.d. symmetric nearest-neighbors conductances $ω_{xy}\in [0,\infty)$ only satisfying $$\mathbb{Q}(ω_{xy}>0)>p_c\ ,$$ where $p_c$ is the critical value for bond percolation.
title From quenched invariance principle to semigroup convergence with applications to exclusion processes
topic Probability
Mathematical Physics
60K35, 60K37, 60G22, 35B27, 60F17, 82C41, 82B43
url https://arxiv.org/abs/2303.04127