2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/115702We derive the essential space-time spectrum of the Maxwell equations in linear isotropic inhomogeneous media together with the corresponding essential modes. These modes represent the collapse of the electromagnetic field into a single point in space at a single angular frequency. The location and frequency of the essential mode are random variables obeying the Born statistical postulate.4 pages, no figuresClassical PhysicsGeneral Physicstext