Quantum Key Distribution Based on Heralded Single Photon Sources and Quantum Memory

被引：6
|
作者：
He Yefeng [1 ,2 ]
Wang Deng [1 ,2 ]
Yang Hongjuan [2 ]
Song Chang [2 ]
Li Dongqi [2 ]
机构：
[1] Xian Univ Posts & Telecommun, Natl Engn Lab Wireless Secur, Xian 710121, Shaanxi, Peoples R China
[2] Xian Univ Posts & Telecommun, Sch Commun & Informat Engn, Xian 710121, Shaanxi, Peoples R China
来源：
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG | 2019年 / 46卷 / 04期
关键词：
quantum optics; quantum key distribution; measurement-device-independent; heralded single photon sources; quantum memory; ATTACK;
D O I：
10.3788/CJL201916.0112001
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A quantum key distribution scheme based on heralded single photon sources and quantum memory is studied. The relationship between key generation rate and safe transmission distance and storage time is analyzed, and the effect of decoherence effect of quantum memory on the final key generation rate is analyzed. The influence of quantum memory on measurement-device-independent quantum key distribution scheme based on heralded single photon sources is studied. The simulation results show that under heralded single photon sources, the increase of the actual coherence time of the quantum memory makes the safe transmission distance of the system increase, and the quantum decoherence effect has a weak influence on the final key generation rate.
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页数：6
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