Intensity Tomography Method for Secure and High-Performance Quantum Key Distribution

被引:1
作者
Lu, Feng-Yu [1 ,2 ,3 ]
Wang, Ze-Hao [1 ,2 ,3 ]
Wang, Shuang [1 ,2 ,3 ]
Yin, Zhen-Qiang [1 ,2 ,3 ]
Chen, Jia-Lin [1 ,2 ,3 ]
Kang, Xiang [1 ,2 ,3 ]
He, De-Yong [1 ,2 ,3 ]
Chen, Wei [1 ,2 ,3 ]
Fan-Yuan, Guan-Jie [1 ,2 ,3 ]
Guo, Guang-Can [1 ,2 ,3 ]
Han, Zheng-Fu [1 ,2 ,3 ]
机构
[1] Univ Sci & Technol China, CAS Key Lab Quantum Informat, Hefei 230026, Peoples R China
[2] Univ Sci & Technol China, CAS Ctr Excellence Quantum Informat & Quantum Phys, Hefei 230026, Peoples R China
[3] Univ Sci & Technol China, Hefei Natl Lab, Hefei 230088, Peoples R China
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
Quantum key distribution; quantum communication; quantum information; decoy-state method; intensity modulation; pattern effect; DISTRIBUTION ROBUST; DETECTOR;
D O I
10.1109/JLT.2023.3247766
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Decoy-state method has greatly filled in loopholes from multi-photon pulses in the field of quantum key distribution (QKD) and it has been employed in almost all practical QKD systems in recent years. However, security and performance of the practical decoy-state QKDs are still limited by inaccurate modulations such as random intensity fluctuation and correlated intensity fluctuation. In this work, an intensity tomography method is proposed as a countermeasure against these fluctuations. It has an ability to tightly bound the unknown density matrices of photon-number state and accurately calibrate the fluctuations by measuring the decoy states with a local single-photon detector. We verified the tomography method by experiments and simulations. The results indicated that our method can efficiently mitigate the flaws from these fluctuations to improve the protocol performance and practical security. Noting that these fluctuations are inevitable in practical QKDs, our method would pave the avenue for QKD's practical applications.
引用
收藏
页码:4895 / 4900
页数:6
相关论文
共 70 条
[11]   Performance and security of 5GHz repetition rate polarization-based quantum key distribution [J].
Gruenenfelder, Fadri ;
Boaron, Alberto ;
Rusca, Davide ;
Martin, Anthony ;
Zbinden, Hugo .
APPLIED PHYSICS LETTERS, 2020, 117 (14)
[12]   Single-photon detectors for optical quantum information applications [J].
Hadfield, Robert H. .
NATURE PHOTONICS, 2009, 3 (12) :696-705
[13]   Sine-wave gating InGaAs/InP single photon detector with ultralow afterpulse [J].
He, De-Yong ;
Wang, Shuang ;
Chen, Wei ;
Yin, Zhen-Qiang ;
Qian, Yong-Jun ;
Zhou, Zheng ;
Guo, Guang-Can ;
Han, Zheng-Fu .
APPLIED PHYSICS LETTERS, 2017, 110 (11)
[14]   Characterization of State-Preparation Uncertainty in Quantum Key Distribution [J].
Huang, Anqi ;
Mizutani, Akihiro ;
Lo, Hoi-Kwong ;
Makarov, Vadim ;
Tamaki, Kiyoshi .
PHYSICAL REVIEW APPLIED, 2023, 19 (01)
[15]   Dependency model for high-performance quantum-key-distribution systems [J].
Huang, Xiao-Juan ;
Lu, Feng-Yu ;
Wang, Shuang ;
Yin, Zhen-Qiang ;
Wang, Ze-Hao ;
Chen, Wei ;
He, De-Yong ;
Fan-Yuan, Guan-Jie ;
Guo, Guang-Can ;
Han, Zheng-Fu .
PHYSICAL REVIEW A, 2022, 106 (06)
[16]   Quantum key distribution with high loss: Toward global secure communication [J].
Hwang, WY .
PHYSICAL REVIEW LETTERS, 2003, 91 (05) :579011-579014
[17]   Patterning-Effect Calibration Algorithm for Secure Decoy-State Quantum Key Distribution [J].
Kang, Xiang ;
Lu, Feng-Yu ;
Wang, Shuang ;
Chen, Jia-Lin ;
Wang, Ze-Hao ;
Yin, Zhen-Qiang ;
He, De-Yong ;
Chen, Wei ;
Fan-Yuan, Guan-Jie ;
Guo, Guang-Can ;
Han, Zheng-Fu .
JOURNAL OF LIGHTWAVE TECHNOLOGY, 2023, 41 (01) :75-82
[18]   Effects of dead time and afterpulses in photon detector on measured statistics of stochastic radiation [J].
Kornilov, Victor .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 2014, 31 (01) :7-15
[19]  
Kwek L. -C, 2021, AAPPS Bull., V31, P1, DOI [10.1007/s43673-021-00017-0, DOI 10.1007/S43673-021-00017-0]
[20]  
Li Zijian, 2022, Quantum Engineering, V2022, DOI 10.1155/2022/9717591