scholarly journals Novel High-Speed Polarization Source for Decoy-State BB84 Quantum Key Distribution Over Free Space and Satellite Links

2013 ◽  
Vol 31 (9) ◽  
pp. 1399-1408 ◽  
Author(s):  
Zhizhong Yan ◽  
Evan Meyer-Scott ◽  
Jean-Philippe Bourgoin ◽  
Brendon L. Higgins ◽  
Nikolay Gigov ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
High Speed ◽  
Key Distribution ◽  
Decoy State ◽  
Satellite Links

scholarly journals High-speed free-space quantum key distribution system for urban daylight applications

2013 ◽  
Vol 52 (14) ◽  
pp. 3311 ◽  
Author(s):  
M. J. García-Martínez ◽  
N. Denisenko ◽  
D. Soto ◽  
D. Arroyo ◽  
A. B. Orue ◽  
...  
Keyword(s):  
Distribution System ◽  
Free Space ◽  
Quantum Key Distribution ◽  
High Speed ◽  
Key Distribution

Practical high-speed light source for decoy-state quantum key distribution

2014 ◽  
Vol 12 (7) ◽  
pp. 072702-72705 ◽  
Author(s):  
Haibin Du Haibin Du ◽  
Yan Liang Yan Liang ◽  
Shengxiang Zhang Shengxiang Zhang ◽  
Xiuliang Chen Xiuliang Chen ◽  
Lin Zhao Lin Zhao ◽  
...  
Keyword(s):  
Light Source ◽  
Quantum Key Distribution ◽  
High Speed ◽  
Key Distribution ◽  
Decoy State

Free-Space Decoy-State Quantum Key Distribution

2008 ◽  
Author(s):  
M. Furst ◽  
T. Schmitt-Manderbach ◽  
H. Weier ◽  
R. Ursin ◽  
F. Tiefenbacher ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Decoy State

scholarly journals Intensity modulator for secure, stable, and high-performance decoy-state quantum key distribution

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Feng-Yu Lu ◽  
Xing Lin ◽  
Shuang Wang ◽  
Guan-Jie Fan-Yuan ◽  
Peng Ye ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
High Speed ◽  
High Performance ◽  
Key Distribution ◽  
Experimental Result ◽  
Modulation Method ◽  
Decoy State ◽  
Intensity Modulator ◽  
State Method ◽  
Decoy State Method

AbstractThe decoy-state method substantially improves the performance of quantum key distribution (QKD) and perfectly solves crucial issues caused by multiphoton pulses. In recent years, the decoy-state method has occupied a key position in practicality, and almost all the QKD systems have employed the decoy-state method. However, the imperfections of traditional intensity modulators limit the performance of the decoy-state method and bring side channels. In this work, a special intensity modulator and its accompanying modulation method are designed and experimentally verified for the secure, stable, and high-performance decoy-state QKDs. The experimental result indicates that its stable and adjustable intensities, convenient two-level modulation, inherently high speed, and compact structure is extremely fit for future trends and will help the decoy-state method to be perfectly applied to QKD systems.

scholarly journals Free Space Decoy-state Quantum Key Distribution Implementation

2017 ◽  
Vol 50 (2) ◽  
pp. 187-192
Author(s):  
A. G. Magnoni ◽  
J. H. López Grande ◽  
M. A. Larotonda
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Decoy State

Key rate estimation of measurement-device-independent quantum key distribution protocol in satellite-earth and intersatellite links

2018 ◽  
Vol 16 (03) ◽  
pp. 1850027 ◽  
Author(s):  
Ahmed Ismael Khaleel ◽  
Shelan Khasro Tawfeeq
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Detection System ◽  
Key Distribution ◽  
Earth Satellite ◽  
Measurement Device ◽  
Decoy State ◽  
Link Distance ◽  
State Case ◽  
Measurement Device Independent

In this work, an estimation of the key rate of measurement-device-independent quantum key distribution (MDI-QKD) protocol in free space was performed. The examined free space links included satellite-earth downlink, uplink and intersatellite link. Various attenuation effects were considered such as diffraction, atmosphere, turbulence and the efficiency of the detection system. Two cases were tested: asymptotic case with infinite number of decoy states and one-decoy state case. The estimated key rate showed the possibility of applying MDI-QKD in earth-satellite and intersatellite links, offering longer single link distance to be covered.

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