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Multiparty quantum secret sharing of secure direct communication using single photons |
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| Authors: | Lian-Fang Han Jun Liu |
| Affiliation: | a Key Laboratory of Optoelectronic Information Acquisition and Manipulation of Ministry of Education of China, School of Physics and Material Science, Anhui University, Hefei 230039, China b Department of Physics, Shaoguan University, Shaoguan 512005, China c Department of Physics and Center for Quantum Information Science, National Cheng Kung University, Tainan 70101, Taiwan |
| Abstract: | We propose a protocol for multiparty quantum secret sharing of secure direct communication using single photons. In this protocol, random phase shift operations instead of some special discrete unitary operations used usually are employed to realize the sharing controls. The security of this protocol with respect to various kinds of attacks is discussed. Due to the complete randomicity of the phase shift characterizing the unitary operations, the security of secret sharing is therefore enhanced. |
| Keywords: | 03.67.Hk 03.67.Dd |
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