2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/102770We discuss the approach to equilibrium of systems governed by the Fokker-Planck equation. In particular, we focus on problems involving barrier penetration and the associated Kramers' time. We also describe the connection between stochastic processes and quantum mechanics.20 pages, 3 figuresStatistical Mechanicstext