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Measuring-Basis Encrypted Quantum Key Distribution with Four-State Systems |
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| Authors: | CHEN Pan LI Yan-Song DENG Fu-Guo LONG Gui-Lu |
| Affiliation: | 1. Key Laboratory for Quantum Information and Measurementsand Department of Physics, Tsinghua University, Beijing 100084, China;2. The Key Laboratory of Beam Technology and MaterialModification of Ministry of Education, and Institute of Low EnergyNuclear Physics, Beijing Normal University, Beijing 100875, China;3. Beijing Radiation Center, Beijing Normal University, Beijing 100875, China;4. Key Laboratory of Atomic and Molecular Sciences, TsinghuaUniversity, Beijing 100084, China |
| Abstract: | A measuring-basis encrypted quantum key distribution scheme is proposed by using twelve nonorthogonal states in a four-state system and the measuring-basis encryption technique. In this scheme, two bits of classical information can be encoded on one four-state particle and the transmitted particles can be fully used. |
| Keywords: | quantum key distribution measuring-basis encryption four-state system |
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