2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/117010A new theoretical approach to the description of the attosecond streaking measurements of atomic photoionization is presented. It is a fully quantum mechanical description based on numerical solving of the time-dependent Schroedinger equation which includes the atomic field as well as the fields of the XUV and IR pulses. Also a simple semiempirical description based on sudden approximation is suggested which agrees very well with the exact solution.4 pages, 3 figuresAtomic Physicstext