Long-distance measurement-device-independent multiparty quantum communication

Physical Review Letters
Yao FuZeng-Bing Chen

Abstract

The Greenberger-Horne-Zeilinger (GHZ) entanglement, originally introduced to uncover the extreme violation of local realism against quantum mechanics, is an important resource for multiparty quantum communication tasks. But the low intensity and fragility of the GHZ entanglement source in current conditions have made the practical applications of these multiparty tasks an experimental challenge. Here we propose a feasible scheme for practically distributing the postselected GHZ entanglement over a distance of more than 100 km for experimentally accessible parameter regimes. Combining the decoy-state and measurement-device-independent protocols for quantum key distribution, we anticipate that our proposal suggests an important avenue for practical multiparty quantum communication.

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Citations

Apr 11, 2018·Scientific Reports·Xiuqing YangLingan Wu
May 20, 2020·Nature Communications·Davide PoderiniFabio Sciarrino
Jul 8, 2016·Scientific Reports·Hua-Lei YinZeng-Bing Chen
Mar 3, 2018·Scientific Reports·Zheng-Hong LiM Al-Amri
Nov 25, 2018·Optics Express·Yong-Su KimSung Moon
Apr 7, 2021·Optics Express·Jie GuZeng-Bing Chen
Apr 7, 2021·Optics Express·Yu-Shuo LuZeng-Bing Chen
Jun 6, 2021·Science Advances·Massimiliano ProiettiAlessandro Fedrizzi

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