title: Experimental simulation of decoherence in photonics qudits.
abstract: We experimentally perform the simulation of open quantum dynamics in single-qudit systems. Using a spatial light modulator as a dissipative optical device, we implement dissipative-dynamical maps onto qudits encoded in the transverse momentum of spontaneous parametric down-converted photon pairs. We show a well-controlled technique to prepare entangled qudits states as well as to implement dissipative local measurements; the latter realize two specific dynamics: dephasing and amplitude damping. Our work represents a new analogy-dynamical experiment for simulating an open quantum system.
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, caixa postal 702, 30123-970, Belo Horizonte, MG - Brazil.|Department of Physics, Stockholm University, S-10691 Stockholm, Sweden.
authors.forename: B
authors.initials: B
authors.lastname: Marques
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, caixa postal 702, 30123-970, Belo Horizonte, MG - Brazil.
authors.forename: A A
authors.initials: AA
authors.lastname: Matoso
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, caixa postal 702, 30123-970, Belo Horizonte, MG - Brazil.
authors.forename: W M
authors.initials: WM
authors.lastname: Pimenta
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, caixa postal 702, 30123-970, Belo Horizonte, MG - Brazil.
authors.forename: A J
authors.initials: AJ
authors.lastname: Gutiérrez-Esparza
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, caixa postal 702, 30123-970, Belo Horizonte, MG - Brazil.
authors.forename: M F
authors.initials: MF
authors.lastname: Santos
authors.affiliation: Departamento de Física, Universidade Federal de Minas Gerais, caixa postal 702, 30123-970, Belo Horizonte, MG - Brazil.
authors.forename: S
authors.initials: S
authors.lastname: Pádua