| Multiparty Quantum Secret Sharing of Classical Message using Cavity Quantum Electrodynamic System |
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| 作者姓名： | 韩莲芳 刘益民 张战军 |
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| 作者单位： | [1]Key Laboratory of Optoelectronic Information Acquisition and Manipulation of Ministry of Education, School of Physics and Material Science, Anhui University, Hefei 230039 [2]Department of Physics, Shaoguan University, Shaoguan 512005 [3]The State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10304022, the Science-Technology Fund of Anhui Province for 0utstanding Youth under Grant No 06042087, the General Fund of the Educational committee of Anhui Province under Grant No. 2006KJ260B, and the Key Fund of the Ministry of Education of China under Grant No 206063. To whom correspondence should be addressed. |
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| 摘 要： | An experimental feasible scheme of multiparty secret sharing of classical messages is proposed, based on a cavity quantum electrodynamic system. The secret messages are imposed on atomic Bell states initially in the sender＇s possession by local unitary operations. By swapping quantum entanglement of atomic Bell states, the secret messages are split into several parts and each part is distributed to a separate party. In this case, any subset of the entire party group can not read out the secret message but the entirety via mutual cooperations. In this scheme, to discriminate atomic Bell states, additional classical fields are employed besides the same highlydetuned single-mode cavities used to prepare atomic Bell states. This scheme is insensitive to the cavity decay and the thermal field, and usual joint Bell-state measurements are unnecessary.
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| 关 键 词： | 量子密码分享 空腔量子电力学系统 经典信息 交换量子纠缠 |
| 收稿时间： | 2006-06-05 |
| 修稿时间： | 2006-06-05 |
Multiparty Quantum Secret Sharing of Classical Message using Cavity Quantum Electrodynamic System |
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| HAN Lian-Fang,LIU Yi-Min,ZHANG Zhan-Jun.Multiparty Quantum Secret Sharing of Classical Message using Cavity Quantum Electrodynamic System[J].Chinese Physics Letters,2006,23(8):1988-1991. |
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| Authors: | HAN Lian-Fang LIU Yi-Min ZHANG Zhan-Jun |
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| Institution: | 1. Key Laboratory of Optoelectronic Information Acquisition and Manipulation of Ministry of Education, School of Physics and Material Science, Anhui University, Hefei 230039;2.Department of Physics, Shaoguan University, Shaoguan 512005;3.The State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 |
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| Abstract: | An experimental feasible scheme of multiparty secret sharing of classical messages is proposed, based on a cavity quantum electrodynamic system. The secret messages are imposed on atomic Bell states initially in the sender's possession by local unitary operations. By swapping quantum entanglement of atomic Bell states, the secret messages are split into several parts and each part is distributed to a separate party. In this case, any subset of the entire party group can not read out the secret message but the entirety via mutual ooperations. In this scheme, to discriminate atomic Bell states, additional classical fields are employed besides the same highly-detuned single-mode cavities used to prepare atomic Bell states. This scheme is insensitive to the cavity decay and the thermal field, and usual joint Bell-state measurements are unnecessary. |
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| Keywords: | 03 67 Lx 03 65 -w 42 50 Dv |
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