| Efficient Three-Party Quantum Secret Sharing with Single Photons |
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| 作者姓名： | 周萍 李熙涵 邓富国 周宏余 |
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| 作者单位： | [1]Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875 [2]Institute of Low Energy Nuclear Physics, and Department of Material Science and Engineering, Beijing Normal University, Beijing 100875 [3]Beijing Radiation Center, Beijing 100875 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10604008 and 10435020; and Beijing Education Committee under Grant No XK100270454. |
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| 摘 要： |
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| 关 键 词： | 光量子 量子密码 信息光学 光谱 |
| 收稿时间： | 2007-2-25 |
| 修稿时间： | 2007-02-25 |
Efficient Three-Party Quantum Secret Sharing with Single Photons |
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| HOU Ping,LI Xi-Han,DENG Fu-Guo,ZHOU Hong-Yu.Efficient Three-Party Quantum Secret Sharing with Single Photons[J].Chinese Physics Letters,2007,24(8):2181-2184. |
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| Authors: | HOU Ping LI Xi-Han DENG Fu-Guo ZHOU Hong-Yu |
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| Institution: | 1. Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875; 2.Institute of Low Energy Nuclear Physics, and Department of Material Science and Engineering, Beijing Normal University, Beijing 100875; 3.Beijing Radiation Center, Beijing 100875 |
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| Abstract: | A scheme for three-party quantum secret sharing of a private key is presented with single photons. The agent Bob first prepares a sequence of single photons with two biased bases and then sends them to the boss Alice who checks the security of the transmission with measurements and produces some decoy photons by rearranging the orders of some sample photons. Alice encodes her bits with two unitary operations on the photons and then sends them to the other agent. The security of this scheme is equivalent to that in the modified Bennett Brassard 1984 quantum key distribution protocol. Moreover, each photon can carry one bit of the private key and the intrinsic efficiency for qubits and the total efficiency both approach the maximal value 100% when the number of the bits in the key is very large. |
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| Keywords: | 03 67 Hk 03 67 Dd |
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