2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94135We study the dynamics of a "kicked" quantum system undergoing repeated measurements of momentum. A diffusive behavior is obtained for a large class of Hamiltonians, even when the dynamics of the classical counterpart is not chaotic. These results can be interpreted in classical terms by making use of a "randomized" classical map. We compute the transition probability for the action variable and consider the semiclassical limit.9 pages, 1 figure. To appear in the Proceedings of the Symposium on "Mathematical Aspects of Quantum Information and Quantum Chaos," Kyoto, Japan, 1999Quantum Physicstext