Spontaneous Parametric Down-Conversion Sources for Multiphoton Experiments

被引：51

作者：

Zhang, Chao ^{[1
,2
]}

Huang, Yun-Feng ^{[1
,2
]}

Liu, Bi-Heng ^{[1
,2
]}

Li, Chuan-Feng ^{[1
,2
]}

Guo, Guang-Can ^{[1
,2
]}

机构：

[1] CAS Univ Sci & Technol China, Key Lab Quantum Informat, Hefei 230026, Peoples R China

[2] Univ Sci & Technol China, Synerget Innovat Ctr Quantum Informat & Quantum P, Hefei 230026, Peoples R China

来源：

ADVANCED QUANTUM TECHNOLOGIES | 2021年 / 4卷 / 05期

基金：

中国国家自然科学基金;

关键词：

entangled twin‐ photon sources; multi‐ photon experiments; spontaneous parametric down‐ conversion; POLARIZATION-ENTANGLED PHOTONS; QUANTUM KEY DISTRIBUTION; HIGH-BRIGHTNESS SOURCE; HIGH-PURITY; EXPERIMENTAL REALIZATION; 2-PHOTON ENTANGLEMENT; CORRELATED PHOTONS; DIRECT GENERATION; BELLS-INEQUALITY; SILICON;

D O I：

10.1002/qute.202000132

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Entangled photon sources are desirable and key elements for photonic quantum information processing. The spontaneous parametric down-conversion (SPDC) process is a convenient way to produce entangled photon pairs. It has been widely used and has already made great contributions to quantum information science. SPDC sources have been thoroughly studied, and a detailed review, previously lacking, is now appropriate. In this article, different types of SPDC sources suitable for multiphoton experiments are reviewed. A comparison of their respective performances is presented, focusing on the parameters of indistinguishability, collection efficiency, and brightness, from which it is possible to see how the spatial and spectral properties of the SPDC process can be tailored, step by step, to achieve near-perfect photon pairs. Recent progress on multiplexed heralded single-photon sources, which effectively mitigate the nondeterministic nature of the SPDC process, is also described.

引用

页数：23

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