Quantum secure direct communication network with Einstein–Podolsky–Rosen pairs |
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| Institution: | 1. The Key Laboratory of Beam Technology and Material Modification of Ministry of Education, Beijing Normal University, Beijing 100875, People''s Republic of China;2. Institute of Low Energy Nuclear Physics, and Department of Material Science and Engineering, Beijing Normal University, Beijing 100875, People''s Republic of China;3. Beijing Radiation Center, Beijing 100875, People''s Republic of China |
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| Abstract: | We discuss the four requirements for a real point-to-point quantum secure direct communication (QSDC) first, and then present two efficient QSDC network schemes with an N ordered Einstein–Podolsky–Rosen pairs. Any one of the authorized users can communicate another one on the network securely and directly. |
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