2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/79525We give bounds on the rate of convergence to equilibrium of the symmetric simple exclusion process in $\Z^d$. Our results include the existent results in the literature. We get better bounds and larger class of initial states via a unified approach. The method includes a comparison of the evolution of n interacting particles with n independent ones along the whole time trajectory.ProbabilityMathematical Physics60K35; 82A05text