Experimental quantum secure direct communication with single photons

Light, Science & Applications
Jian-Yong HuGui-Lu Long

Abstract

Quantum secure direct communication is an important mode of quantum communication in which secret messages are securely communicated directly over a quantum channel. Quantum secure direct communication is also a basic cryptographic primitive for constructing other quantum communication tasks, such as quantum authentication and quantum dialog. Here, we report the first experimental demonstration of quantum secure direct communication based on the DL04 protocol and equipped with single-photon frequency coding that explicitly demonstrated block transmission. In our experiment, we provided 16 different frequency channels, equivalent to a nibble of four-bit binary numbers for direct information transmission. The experiment firmly demonstrated the feasibility of quantum secure direct communication in the presence of noise and loss.

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Citations

Jul 6, 2016·Scientific Reports·Lan Zhou, Yu-Bo Sheng
Jul 5, 2018·Revista Da Sociedade Brasileira De Medicina Tropical·Ítala Keane Rodrigues DiasMaria Corina Amaral Viana
Mar 3, 2020·Advanced Materials·Yinhui KanSergey I Bozhevolnyi
Mar 23, 2017·Scientific Reports·Dong JiangLijun Chen
Apr 1, 2020·Optics Express·Lyubov V AmitonovaPepijn W H Pinkse
May 5, 2017·Light, Science & Applications·Xiang GuoHong X Tang
Nov 30, 2019·Scientific Reports·Hussein AbulkasimShohini Ghose
May 5, 2017·Scientific Reports·Y Q JiX X Yi
Jun 18, 2017·Physical Review Letters·Wei ZhangGuang-Can Guo
Aug 10, 2017·Optics Express·Chun ZhouHong-Wei Li
Feb 8, 2019·Light, Science & Applications·Ruoyang QiGui-Lu Long
Oct 22, 2020·Light, Science & Applications·Yupeng GongIan H White
Dec 9, 2020·Entropy·Youn-Chang JeongJingak Jang

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