Experimental quantum secure direct communication with single photons

Jian-Yong Hu; Bo Yu; Ming-Yong Jing; Lian-Tuan Xiao; Suo-Tang Jia; Guo-Qing Qin; Gui-Lu Long

doi:10.1038/lsa.2016.144

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Experimental quantum secure direct communication with single photons

Original Articles

- Experimental quantum secure direct communication with single photons
- Light: Science & Applications Vol. 5, Issue 3, (2016)
- Affiliations：
  
  1.State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan, Shanxi 030006, China
  2.Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
  3.State Key Laboratory of Low-Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, China
  4.Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
  5.Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China
- Author bio：
  
  LT Xiao, Email: xlt@sxu.edu.cn
  GL Long, Email: gllong@mail.tsinghua.edu.cn
- Funds：
- DOI：10.1038/lsa.2016.144
  CLC：
- Published：2016-09，
  
  Published Online：07 April 2016，
  
  Received：06 September 2015，
  
  Revised：31 March 2016，
  
  Accepted：01 April 2016
- Accepted：
Scan QR Code
Hu, J. Y. et al. Experimental quantum secure direct communication with single photons. Light: Science & Applications, 5, e16144 (2016).
DOI：

Hu, J. Y. et al. Experimental quantum secure direct communication with single photons. Light: Science & Applications, 5, e16144 (2016). DOI： 10.1038/lsa.2016.144.

摘要

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.

关键词

Keywords

block transmissionchannel loss and noiseDL04 protocolquantum secure direct communicationsingle-photon frequency coding

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