Simple direct measurement of nonclassical joint signal-idler photon-number statistics and correlation area of twin photon beams
Ondrej Haderka, Jan Perina Jr, Martin Hamar
TL;DR
This paper demonstrates a direct measurement method for joint photon-number statistics of twin photon beams using an intensified CCD camera, revealing nonclassical correlations and characterizing the correlation area.
Contribution
It introduces a simple direct measurement technique for nonclassical joint photon statistics and correlation areas in twin photon beams, verified by experimental data.
Findings
Measured data violate classicality criteria.
Characteristic dimensions of correlation area are determined.
Method confirms nonclassical photon correlations.
Abstract
The measurement of joint signal-idler photon-number distribution of a field obtained from spontaneous parametric downconversion using an intensified CCD camera is presented. It is shown that a classicality criterion is violated directly by the measured data. Characteristic dimensions of the area of correlation are determined in the same experimental setup.
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