2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91995We show that a thermal light random in transverse direction can perform subwavelength double slit interference in a joint-intensity measurement. This is the classical version of quantum lithography, and it can be explained with the correlation of rays instead of the entanglement of photons.4 pages, 2 figuresQuantum Physicstext