Multiparty Quantum Secret Sharing of Classical Message using Cavity Quantum Electrodynamic System

HAN Lian-Fang; LIU Yi-Min; ZHANG Zhan-Jun

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Multiparty Quantum Secret Sharing of Classical Message using Cavity Quantum Electrodynamic System

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@@ 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 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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《中国物理快报：英文版》 |2006年第8期|1988-1991|共4页
作者
HAN Lian-Fang; LIU Yi-Min; ZHANG Zhan-Jun;
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作者单位

Key Laboratory of Optoelectronic Information Acquisition and Manipulation of Ministry of Education, School of Physics and Material Science, Anhui University, Hefei 230039;

Department of Physics, Shaoguan University, Shaoguan 512005;

The State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071;

Key Laboratory of Optoelectronic Information Acquisition and Manipulation of Ministry of Education, School of Physics and Material Science, Anhui University, Hefei 230039;

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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中图分类物理学;
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Multiparty Quantum Secret Sharing of Classical Message using Cavity Quantum Electrodynamic System

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