Review of recent progresses at INRIM on studies on quantum communication
G. Brida, Marco Genovese, Marco Gramegna, Leonid A. Krivitsky, Fabrizio Piacentini · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2006
In this paper we will present some experimental researches about Quantum Communication performed in "Carlo Novero" Quantum Optics laboratory at INRiM (former IEN). After a general review of our studies, we will describe our recent researches on propagation of polarization entangled photons in optical fibres focused on the investigation of the effect of two-photon interference in the second-order Glauber's correlation function and on the characterization of this quantum channel as a Complete Positive (CP) map. We will then describe an innovative method, based on detectors operating in Geiger mode (on/off), for reconstructing the photon statistics of quantum optical states, presenting experimental data collected to test the extension of this method to multi-partite states.