2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/125024Based on a simple microscopic model where the bath is in a non-equilibrium state we study the escape from a metastable state in the over-damped limit. Making use of Fokker-Planck-Smoluchowski description we derive the time dependent escape rate in the non-stationary regime in closed analytical form which brings on to fore a strong non-exponential kinetic of the system mode.4 pages, no figures, EPJ class file includedStatistical MechanicsChemical Physicstext