Secure Communication Based on Quantum Key |
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| Authors: | SONG Jie XIA Yan SONG He-Shan |
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| Institution: | School of Physic and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | We introduce a protocol for QKD based on reusable entangled
states. In this protocol, the EPR pairs act as a quantum key to
encode and decode information particles. And only an information
particle travels between the legitimated users. This improves the
security and efficiency of communication. In addition, we show
that its extension to a new QSS protocol is also secure and efficient. |
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| Keywords: | secure communication EPR pairs unitary operation |
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