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Quantum Key Distribution Using High-Dimensional Quantum Error-Avoiding Code |
LIU Wen-Yu;LI Ning;LIU Yu |
Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074 |
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Cite this article: |
LIU Wen-Yu, LI Ning, LIU Yu 2006 Chin. Phys. Lett. 23 1976-1979 |
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Abstract Using high-dimensional quantum error-avoiding code, we present two new quantum key distribution protocols over a collective noisy channel, i.e. six-photon and five-photon quantum error-avoiding codes. Compared with the previous protocols using four-photon and three-photon quantum error-avoiding code, the qubit efficiencies of the new protocols have increases of 16.67% and 5% respectively. In addition, the security of these protocols is analysed with a conclusion that the new protocols are much more secure than the four-photon and three-photon ones.
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Keywords:
03.67.Hk
03.67.Dd
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Published: 01 August 2006
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PACS: |
03.67.Hk
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(Quantum communication)
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03.67.Dd
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(Quantum cryptography and communication security)
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