2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/120889We show how the dynamics of collisions between cold atoms can be manipulated by a modification of spontaneous emission times. This is achieved by placing the atomic sample in a resonant optical cavity. Spontaneous emission is enhanced by a combination of multiparticle entanglement together with a higher density of modes of the modified vacuum field, in a situation akin to superradiance. A specific situation is considered and we show that this effect can be experimentally observed as a large suppression in trap-loss rates.RevTex, 2 EPS figures; scheduled for Phys. Rev. Lett. 19 Feb 01, with minor changesQuantum Physicstext