2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/197126In the framework of open quantum systems, the propagation of polarized photons can be effectively described using quantum dynamical semigroups. These extended time-evolutions induce irreversibility and dissipation. Planned, high sensitive experiments, both in the laboratory and in space, will be able to put stringent bounds on these non-standard effects.15 pages, plain-TeX, no figuresHigh Energy Physics - PhenomenologyHigh Energy Physics - TheoryQuantum Physicstext