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Updated: Mar 30, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Experimental simulation of decoherence in photonics qudits
B Marques1,2, A A Matoso1, W M Pimenta1
1Departamento de Física, Universidade Federal de Minas Gerais, caixa postal 702, 30123-970, Belo Horizonte, MG - Brazil.
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.
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