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25 April 2024

» arxiv » 0708.2216

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Experimental joint signal-idler quasi-distributions and photon-number statistics for mesoscopic twin beam
Jan Perina ; Jaromir Krepelka ; Jan Perina Jr ; Maria Bondani ; Alessia Allevi ; Alessandra Andreoni ;
Date:	16 Aug 2007
Abstract:	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.
Source:	arXiv, 0708.2216
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