Experimental quantum secure direct communication with single photons

被引：0
作者：
Jian-Yong Hu
Bo Yu
Ming-Yong Jing
Lian-Tuan Xiao
Suo-Tang Jia
Guo-Qing Qin
Gui-Lu Long
机构：
[1] State Key Laboratory of Quantum Optics and Quantum Optics Devices,State Key Laboratory of Low
[2] Institute of Laser Spectroscopy,Dimensional Quantum Physics and Department of Physics
[3] Shanxi University,undefined
[4] Collaborative Innovation Center of Extreme Optics,undefined
[5] Shanxi University,undefined
[6] Tsinghua University,undefined
[7] Collaborative Innovation Center of Quantum Matter,undefined
[8] Tsinghua National Laboratory for Information Science and Technology,undefined
[9] Tsinghua University,undefined
来源：
Light: Science & Applications | 2016年 / 5卷
关键词：
block transmission; channel loss and noise; DL04 protocol; quantum secure direct communication; single-photon frequency coding;
D O I：
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中图分类号：
学科分类号：
摘要：
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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页码：e16144 / e16144
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