A BB84 free space quantum key distribution link implemented with modulating retro-reflectors

2018 ◽  
Author(s):  
William S. Rabinovich ◽  
Rita Mahon ◽  
Mike S. Ferraro ◽  
Peter G. Goetz ◽  
Mark Bashkansky ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution

scholarly journals Geometrical Optics Restricted Eavesdropping Analysis of Satellite-to-Satellite Secret Key Distillation

Entropy ◽  
2021 ◽  
Vol 23 (8) ◽  
pp. 950
Author(s):  
Ziwen Pan ◽  
Ivan B. Djordjevic
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Security Analysis ◽  
Key Distribution ◽  
Geometrical Optics ◽  
Secret Key ◽  
Satellite Applications

Traditionally, the study of quantum key distribution (QKD) assumes an omnipotent eavesdropper that is only limited by the laws of physics. However, this is not the case for specific application scenarios such as the QKD over a free-space link. In this invited paper, we introduce the geometrical optics restricted eavesdropping model for secret key distillation security analysis and apply to a few scenarios common in satellite-to-satellite applications.

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

scholarly journals Full daylight quantum-key-distribution at 1550 nm enabled by integrated silicon photonics

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
M. Avesani ◽  
L. Calderaro ◽  
M. Schiavon ◽  
A. Stanco ◽  
C. Agnesi ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Silicon Photonics ◽  
Free Space ◽  
Quantum Key Distribution ◽  
Cost Effective ◽  
Key Distribution ◽  
Global Scale ◽  
Secret Key ◽  
Quantum Bit ◽  
Integrated Silicon Photonics

AbstractThe future envisaged global-scale quantum-communication network will comprise various nodes interconnected via optical fibers or free-space channels, depending on the link distance. The free-space segment of such a network should guarantee certain key requirements, such as daytime operation and the compatibility with the complementary telecom-based fiber infrastructure. In addition, space-to-ground links will require the capability of designing light and compact quantum devices to be placed in orbit. For these reasons, investigating available solutions matching all the above requirements is still necessary. Here we present a full prototype for daylight quantum key distribution at 1550 nm exploiting an integrated silicon-photonics chip as state encoder. We tested our prototype in the urban area of Padua (Italy) over a 145 m-long free-space link, obtaining a quantum bit error rate around 0.5% and an averaged secret key rate of 30 kbps during a whole sunny day (from 11:00 to 20:00). The developed chip represents a cost-effective solution for portable free-space transmitters and a promising resource to design quantum optical payloads for future satellite missions.

Real-time selection for free-space measurement device independent quantum key distribution

2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Zhuo-Dan Zhu ◽  
Dong Chen ◽  
Shang-Hong Zhao ◽  
Qin-Hui Zhang ◽  
Jun-Hua Xi
Keyword(s):  
Real Time ◽  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Measurement Device ◽  
Selection For ◽  
Space Measurement ◽  
Time Selection ◽  
Measurement Device Independent

Implementation of two-way free space quantum key distribution

2012 ◽  
Vol 51 (4) ◽  
pp. 045006 ◽  
Author(s):  
Mohd Fared bin Abdul Khir
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution

scholarly journals Phase-modulated free space quantum key distribution

2004 ◽  
Vol 53 (7) ◽  
pp. 2123
Author(s):  
Miao Er-Long ◽  
Mo Xiao-Fan ◽  
Gui You-Zhen ◽  
Han Zheng-Fu ◽  
Guo Guang-Can
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution

scholarly journals Free Space Quantum Key Distribution: Towards a Real Life Application

2007 ◽  
pp. 315-323
Author(s):  
Henning Weier ◽  
Tobias Schmitt-Manderbach ◽  
Nadja Regner ◽  
Christian Kurtsiefer ◽  
Harald Weinfurter
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Real Life ◽  
Key Distribution

A novel synchronization scheme for free-space quantum key distribution system

2011 ◽  
Author(s):  
Feng Tang ◽  
Shuang Gao ◽  
Xiaofei Wang ◽  
Bing Zhu
Keyword(s):  
Distribution System ◽  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Synchronization Scheme

Background Light Suppression in Free Space Quantum Key Distribution

2018 ◽  
Vol 55 (6) ◽  
pp. 060004
Author(s):  
朱秋立 Zhu Qiuli ◽  
石磊 Shi Lei ◽  
魏家华 Wei Jiahua ◽  
朱宇 Zhu Yu ◽  
杨汝 Yang Ru ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Background Light

Quantum catalysis-assisted attenuation for improving free-space continuous-variable quantum key distribution

2020 ◽  
Vol 53 (18) ◽  
pp. 185501
Author(s):  
Zhiyue Zuo ◽  
Yijun Wang ◽  
Yun Mao ◽  
Wei Ye ◽  
Liyun Hu ◽  
...  
Keyword(s):  
Free Space ◽  
Quantum Key Distribution ◽  
Key Distribution ◽  
Continuous Variable
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