Assessing frequency correlation through a distinguishability measurement

被引：5
作者：
Sbroscia, Marco [1 ]
Gianani, Ilaria [1 ]
Roccia, Emanuele [1 ]
Cimini, Valeria [1 ]
Mancino, Luca [1 ]
Aloe, Paolo [1 ]
Barbieri, Marco [1 ]
机构：
[1] Univ Roma Tre, Dipartimento Sci, Via Vasca Navale 84, I-00146 Rome, Italy
来源：
OPTICS LETTERS | 2018年 / 43卷 / 16期
关键词：
ENTANGLED PHOTONS; QUANTUM LIGHT; CONVERSION; CANCELLATION; DISPERSION; DOMAIN; STATES;
D O I：
10.1364/OL.43.004045
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The simplicity of a question, such as wondering whether or not correlations characterize a certain system, collides with the experimental difficulty of accessing such information. Here we present a low-demanding experimental approach that refers to the use of a metrology scheme to obtain a conservative estimate of the strength of frequency correlations. Our test bed is the widespread case of a photon pair produced per downconversion. The theoretical architecture used to put the correlation degree on a quantitative ground is also described. (C) 2018 Optical Society of America
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页码：4045 / 4048
页数：4
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