title: Irreversible effects of random unitary transformations on coherence properties of partially polarized electromagnetic fields.
abstract: We demonstrate monotonic, irreversible effects on the entropy, the degree of polarization, and different degrees of coherence when random, energy-preserving unitary transformations are applied to vectorial electromagnetic fields.
authors.affiliation: Institut Fresnel, Aix-Marseille Universite, Ecole Centrale Marseille, Domaine Universitaire de Saint Jerome, Marseille, France. philippe.refregier@fresnel.fr
authors.forename: Philippe
authors.initials: P
authors.lastname: Réfrégier
authors.forename: Alfredo
authors.initials: A
authors.lastname: Luis