Experimental quantum secret sharing and third-man quantum cryptography |
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Authors: | Chen Yu-Ao Zhang An-Ning Zhao Zhi Zhou Xiao-Qi Lu Chao-Yang Peng Cheng-Zhi Yang Tao Pan Jian-Wei |
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Affiliation: | Hefei National Laboratory for Physical Sciences at Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei, 230027, People's Republic of China. |
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Abstract: | Quantum secret sharing (QSS) and third-man quantum cryptography (TQC) are essential for advanced quantum communication; however, the low intensity and fragility of the multiphoton entanglement source in previous experiments have made their realization an extreme experimental challenge. Here, we develop and exploit an ultrastable high intensity source of four-photon entanglement to report an experimental realization of QSS and TQC. The technology developed in our experiment will be important for future multiparty quantum communication. |
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