Experimental quantum secure direct communication with single photons.
Experimental quantum secure direct communication with single photons.
复制标题
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:
影响因子:
--
通讯作者:
Long GL
中科院分区:
文献类型:
--
作者:
Hu JY;Yu B;Jing MY;Xiao LT;Jia ST;Qin GQ;Long GL
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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