Experimental joint signal-idler quasi-distributions and photon-number statistics for mesoscopic twin beams

Details Experimental joint signal-idler quasi-distributions and photon-number statistics for mesoscopic twin beams Experimental joint signal-idler quasi-distributions and photon-number statistics for mesoscopic twin beams

2007-08-16

arxiv.org/abs/0708.2216v1

Phys. Rev. A 76 (2007) 043806

Physics

Quantum Physics

7 pages, 6 figures

Scientific paper

10.1103/PhysRevA.76.043806

Joint signal-idler photoelectron distributions of twin beams containing several tens of photons per mode have been measured recently. Exploiting a microscopic quantum theory for joint quasi-distributions in parametric down-conversion developed earlier we characterize properties of twin beams in terms of quasi-distributions using experimental data. Negative values as well as oscillating behaviour in quantum region are characteristic for the subsequently determined joint signal-idler quasi-distributions of integrated intensities. Also the conditional and difference photon-number distributions are shown to be sub-Poissonian and sub-shot-noise, respectively.

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