Guo Fen-Zhuo(郭奋卓)a)b), Gao Fei(高飞)a), Wen Qiao-Yan(温巧燕)a), and Zhu Fu-Chen(朱甫臣)c)
a School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China; b State Key Laboratory of Integrated Services Network, Xidian University, Xi'an 710071, China; c National Laboratory for Modern Communications, P.O. Box 810, Chengdu 610041, China
Abstract Using the generalized Bell states and quantum gates, we introduce a quantum encryption scheme of d-level states (qudits). The scheme can detect and correct arbitrary transmission errors using only local operations and classical communications between the communicators. In addition, the entanglement key used to encrypt can be recycled. The protocol is informationally secure, because the output state is a totally mixed one for every input state $\rho$.
Received: 20 May 2005
Revised: 02 March 2006
Accepted manuscript online:
Fund: Project supported by the National Natural Science
Foundation of China (Grant No 60373059), the Special Research Fund for
the Doctoral Program of Higher Education of China (Grant No 20040013007),
the Major Research plan of the National Natural Science Foundation of
China(Grant No 90604023), the National Laboratory for Modern Communications
Science Foundation of China, the National Key Laboratory on Theory and Chief
Technology of Integrated Services Networks (ISN) Open Foundation, and the
Graduate Students Innovation Foundation of Beijing University of Posts and
Telecommunications.
Cite this article:
Guo Fen-Zhuo(郭奋卓), Gao Fei(高飞), Wen Qiao-Yan(温巧燕), and Zhu Fu-Chen(朱甫臣) A quantum encryption scheme using d-level systems 2006 Chinese Physics 15 1690
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