2007/08/16 by Jan Perina, Jaromir Krepelka, J. Křepelka +5 · 25 citations
Computer Science · Mathematics · Physics and Astronomy · #Computational physics #Computer science #Detector #Joint (building) #Mathematics #Mesoscopic physics #Optics #Orbital Angular Momentum in Optics #Parametric statistics #Photon #Physics #Quantum #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #SIGNAL (programming language) #Shot noise #Statistics #quant-ph
paper · pdf · doi:10.1103/physreva.76.043806
published in Physical Review A 76(4) (American Physical Society) · 7 pages, 6 figures
arxiv created 2007/08/16 · openalex publication_date 2007/10/09 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 quasidistributions in parametric down-conversion developed earlier we characterize properties of twin beams in terms of quasidistributions using experimental data. Negative values as well as oscillating behavior in the quantum region are characteristic for the subsequently determined joint signal-idler quasidistributions of integrated intensities. Also the conditional and difference photon-number distributions are shown to be sub-Poissonian and sub-shot-noise, respectively.