2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89388A quantum system with discrete and continuos evolution spectrum is studied. A final pointer basis is found, that can be defined in a presised mathematical way. This result is use to explain the quantum measurement in the system.10 pagesQuantum PhysicsFunctional approach to quantum decoherence and the classical final limit II: the pointer basis and the quantum measurementstext