2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17829A microscopic theory for equilibrium and non equilibrium relaxations in structural glasses is formulated. For all temperatures below the glass transition the dynamics can be asymptotically separated in a $β$ - relaxation regime, which connects a quasi equilibrium with the aging regime and the aging regime. In the $β$ - relaxation regime dynamic correlation are independent from spatial correlations. This is due to a self organized critical bifurcation scenario, which gives rise to one dynamic power law and a logarithmic law. It is shown that the fluctuation dissipation ratio in the aging regime is a universal property of the system independent from spatial scales.4 pagesDisordered Systems and Neural Networkstext