title: Innovative method to investigate how the spatial correlation of the pump beam affects the purity of polarization entangled states.
abstract: We present an innovative method to address the relation between the purity of type-I polarization entangled states and the spatial properties of the pump laser beam. Our all-optical apparatus is based on a spatial light modulator, and it offers unprecedented control on the spatial phase function of the entangled states. In this way, we demonstrate quantitatively the relation between the purity of the generated state and the spatial field correlation function of the pump beam.
authors.affiliation: Dipartimento di Fisica, Università degli Studi di Milano, I-20133 Milan, Italy. simone.cialdi@unimi.it
authors.forename: Simone
authors.initials: S
authors.lastname: Cialdi
authors.forename: Davide
authors.initials: D
authors.lastname: Brivio
authors.forename: Andrea
authors.initials: A
authors.lastname: Tabacchini
authors.forename: Ali Mohammed
authors.initials: AM
authors.lastname: Kadhim
authors.forename: Matteo G A
authors.initials: MG
authors.lastname: Paris