2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/159023We propose a scheme to generate arbitrary Fock states |N> in a cavity QED using N resonant Rydberg atoms. The atom-field interaction times are controlled via Stark-shifts adjusted in a way that each atom transfers a photon to the cavity, turning atomic detections useless. Fluctuations affecting the control of the atom-field interactions are also considered.3 pages, 2 figures;Quantum Physicstext