Second-order temporal interference of two independent light beams at an asymmetrical beam splitter

被引：4
|
作者：
Liu, Jianbin [1 ,2 ]
Wang, Jingjing [1 ,2 ]
Xu, Zhuo [1 ,2 ]
机构：
[1] Xi An Jiao Tong Univ, Elect Mat Res Lab, Key Lab, Minist Educ, Xian 710049, Peoples R China
[2] Xi An Jiao Tong Univ, Int Ctr Dielect Res, Xian 710049, Peoples R China
来源：
CHINESE PHYSICS B | 2017年 / 26卷 / 01期
基金：
中国国家自然科学基金;
关键词：
two-photon interference; Feynman's path integral theory; asymmetrical beam splitter; QUANTUM-THEORY; LASER;
D O I：
10.1088/1674-1056/26/1/014201
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The second-order temporal interference of classical and nonclassical light at an asymmetrical beam splitter is discussed based on two-photon interference in Feynman's path integral theory. The visibility of the second-order interference pattern is determined by the properties of the superposed light beams, the ratio between the intensities of these two light beams, and the reflectivity of the asymmetrical beam splitter. Some requirements about the asymmetrical beam splitter have to be satisfied in order to ensure that the visibility of the second-order interference pattern of nonclassical light beams exceeds the classical limit. The visibility of the second-order interference pattern of photons emitted by two independent single-photon sources is independent of the ratio between the intensities. These conclusions are important for the researches and applications in quantum optics and quantum information when an asymmetrical beam splitter is employed.
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收藏
页数：7
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