Feasible high-dimensional measurement-device-independent quantum key distribution

被引：5

作者：

Yang, Meng-Ying ^{[1
]}

Zhao, Peng ^{[1
]}

Zhou, Lan ^{[2
]}

Zhong, Wei ^{[1
,3
]}

Sheng, Yu-Bo ^{[1
,3
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Inst Quantum Informat & Technol, Nanjing 210003, Peoples R China

[2] Nanjing Univ Posts & Telecommun, Sch Sci, Nanjing 210003, Peoples R China

[3] Nanjing Univ Posts & Telecommun, Minist Educ, Key Lab Broadband Wireless Commun & Sensor Networ, Nanjing 210003, Peoples R China

来源：

LASER PHYSICS LETTERS | 2021年 / 18卷 / 07期

基金：

中国国家自然科学基金;

关键词：

measurement-device-independent quantum key distribution; high-dimensional qudit; hyperentanglement Bell state analysis; SECURE DIRECT COMMUNICATION; BELL-STATE ANALYSIS; DOT SPINS; CRYPTOGRAPHY; SYSTEMS;

D O I：

10.1088/1612-202X/ac091b

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Measurement-device-independent quantum key distribution (MDI-QKD) can resist all possible attacks from practical measurement devices. High-dimensional (HD) MDI-QKD in multiple degrees of freedom (DOFs) can efficiently increase the key generation rate and has strong noise and error resistance. However, previous HD MDI-QKD protocols in multiple DOFs required complete hyperentangled Bell state analysis (HBSA), which cannot be realized under current experimental conditions and largely limits the practicality of the HD MDI-QKD. In this paper, we propose an HD MDI-QKD protocol in multiple DOFs which adopts a linear-optical HBSA. This adoption of the linear-optical HBSA makes our HD MDI-QKD feasible under current experimental technology. The key generation rate of our MDI-QKD protocol is about eight times of the original MDI-QKD protocol. Our HD MDI-QKD protocol may have potential applications in current and future quantum communication fields.

引用

页数：9

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