Phys. Rev. A 80, 053815 (2009) [5 pages]How colors influence numbers: Photon statistics of parametric down-conversionReceived 22 December 2008; published 10 November 2009 Parametric down-conversion (PDC) is a technique of ubiquitous experimental significance in the production of nonclassical, photon-number-correlated twin beams. Standard theory of PDC as a two-mode squeezing process predicts and homodyne measurements observe a thermal photon number distribution per beam. Recent experiments have obtained conflicting distributions. In this article, we explain the observation by an a priori theoretical model solely based on directly accessible physical quantities. We compare our predictions with experimental data and find excellent agreement. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.80.053815
DOI:
10.1103/PhysRevA.80.053815
PACS:
42.65.Lm, 42.50.Ar, 42.50.Dv
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