2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/86406We introduce a unified and simplified theory of atomic double ionization. Our results show that at high laser intensities ($I \ge 10^{14}$ watts/cm$^2$) purely classical correlation is strong enough to account for all of the main features observed in experiments to date.Atomic PhysicsNon-Sequential Double Ionization is a Completely Classical Photoelectric Effecttext