Experimental quantum secure direct communication with single photons.

Experimental quantum secure direct communication with single photons.
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单光子实验量子安全直接通信

DOI:
10.1038/lsa.2016.144
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发表时间:
2016-09
期刊:
Light, science & applications
影响因子:
--
通讯作者:
Long GL
Long GL
中科院分区:
其他
文献类型:
--
作者:
Hu JY;Yu B;Jing MY;Xiao LT;Jia ST;Qin GQ;Long GL

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量子安全直接通信是量子通信的一种重要模式,其中秘密信息通过量子信道直接安全地传递。量子安全直接通信也是构建其他量子通信任务(如量子认证和量子对话)的基本密码原语。在此,我们报告了基于DL04协议且配备单光子频率编码并明确展示了分组传输的量子安全直接通信的首次实验演示。在我们的实验中,我们提供了16个不同的频率信道,相当于四位二进制数的半字节用于直接信息传输。该实验有力地证明了在存在噪声和损耗的情况下量子安全直接通信的可行性。
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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