A High Dimensional Measurement-Device-Independent Quantum Key Distribution Scheme Based on Optical Quantum State Fusion and Fission

2018 ◽  
Vol 57 (12) ◽  
pp. 3902-3911
Author(s):  
Li Li ◽  
Changhua Zhu ◽  
Dongxiao Quan ◽  
Changxing Pei
Keyword(s):  
Quantum State ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
High Dimensional ◽  
Measurement Device ◽  
Dimensional Measurement ◽  
Distribution Scheme ◽  
State Fusion ◽  
Measurement Device Independent

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

2021 ◽  
Vol 18 (7) ◽  
pp. 075204
Author(s):  
Meng-Ying Yang ◽  
Peng Zhao ◽  
Lan Zhou ◽  
Wei Zhong ◽  
Yu-Bo Sheng
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
High Dimensional ◽  
Measurement Device ◽  
Dimensional Measurement ◽  
Measurement Device Independent

scholarly journals Measurement-device-independent quantum key distribution with leaky sources

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Weilong Wang ◽  
Kiyoshi Tamaki ◽  
Marcos Curty
Keyword(s):  
Quantum Key Distribution ◽  
Communication Systems ◽  
Signal Transmission ◽  
Information Leakage ◽  
Key Distribution ◽  
Time Frame ◽  
Measurement Device ◽  
Decoy State ◽  
Unrealistic Assumption ◽  
Measurement Device Independent

AbstractMeasurement-device-independent quantum key distribution (MDI-QKD) can remove all detection side-channels from quantum communication systems. The security proofs require, however, that certain assumptions on the sources are satisfied. This includes, for instance, the requirement that there is no information leakage from the transmitters of the senders, which unfortunately is very difficult to guarantee in practice. In this paper we relax this unrealistic assumption by presenting a general formalism to prove the security of MDI-QKD with leaky sources. With this formalism, we analyze the finite-key security of two prominent MDI-QKD schemes—a symmetric three-intensity decoy-state MDI-QKD protocol and a four-intensity decoy-state MDI-QKD protocol—and determine their robustness against information leakage from both the intensity modulator and the phase modulator of the transmitters. Our work shows that MDI-QKD is feasible within a reasonable time frame of signal transmission given that the sources are sufficiently isolated. Thus, it provides an essential reference for experimentalists to ensure the security of implementations of MDI-QKD in the presence of information leakage.

Polarization-Encoding-Based Measurement-Device-Independent Quantum Key Distribution with a Single Untrusted Source

2016 ◽  
Vol 33 (10) ◽  
pp. 100301 ◽  
Author(s):  
Chuan-Qi Liu ◽  
Chang-Hua Zhu ◽  
Lian-Hui Wang ◽  
Lin-Xi Zhang ◽  
Chang-Xing Pei
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
Measurement Device ◽  
Polarization Encoding ◽  
Measurement Device Independent

scholarly journals Long-Distance Free-Space Measurement-Device-Independent Quantum Key Distribution

2020 ◽  
Vol 125 (26) ◽  
Author(s):  
Yuan Cao ◽  
Yu-Huai Li ◽  
Kui-Xing Yang ◽  
Yang-Fan Jiang ◽  
Shuang-Lin Li ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Long Distance ◽  
Measurement Device ◽  
Space Measurement ◽  
Measurement Device Independent
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