Multi-user quantum key distribution with a semiconductor source of entangled photon pairs (Conference Presentation)

2017 ◽  
Author(s):  
Sara Ducci ◽  
Claire Autebert ◽  
Julien Trapateau ◽  
Adeline Orieux ◽  
Aristide Lemaître ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution ◽  
Photon Pairs ◽  
Entangled Photon Pairs

scholarly journals Passively stable distribution of polarisation entanglement over 192 km of deployed optical fibre

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Sören Wengerowsky ◽  
Siddarth Koduru Joshi ◽  
Fabian Steinlechner ◽  
Julien R. Zichi ◽  
Bo Liu ◽  
...  
Keyword(s):  
Quantum Key Distribution ◽  
Stable Distribution ◽  
Dispersion Compensation ◽  
Chromatic Dispersion ◽  
Bell State ◽  
Long Distance ◽  
Quantum Networks ◽  
Two Photon ◽  
Photon Pairs ◽  
Entangled Photon Pairs

AbstractQuantum key distribution (QKD) based on entangled photon pairs holds the potential for repeater-based quantum networks connecting clients over long distance. We demonstrate long-distance entanglement distribution by means of polarisation-entangled photon pairs through two successive deployed 96 km-long telecommunications fibres in the same submarine cable. One photon of each pair was detected directly after the source, while the other travelled the fibre cable in both directions for a total distance of 192 km and attenuation of 48 dB. The observed two-photon Bell state exhibited a fidelity 85 ± 2% and was stable over several hours. We employed neither active stabilisation of the quantum state nor chromatic dispersion compensation for the fibre.

One-Way Protocol for Two-Bit Intrinsic Random Key Distribution with Entangled Photon Pairs

2010 ◽  
Vol 50 (3) ◽  
pp. 663-670 ◽  
Author(s):  
Guo-Dong Kang ◽  
Mao-Fa Fang ◽  
Xing Xiao ◽  
Yan-Ling Li
Keyword(s):  
Key Distribution ◽  
Photon Pairs ◽  
Entangled Photon Pairs

Quantum Key Distribution: Attacks and Solutions

2020 ◽  
Author(s):  
Vimal Gaur ◽  
Devika Mehra ◽  
Anchit Aggarwal ◽  
Raveena Kumari ◽  
Srishti Rawat
Keyword(s):  
Quantum Key Distribution ◽  
Key Distribution
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