中国物理B ›› 2006, Vol. 15 ›› Issue (8): 1690-1694.doi: 10.1088/1009-1963/15/8/009

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A quantum encryption scheme using d-level systems

朱甫臣1, 高　飞2, 温巧燕2, 郭奋卓3   

  1. (1)National Laboratory for Modern Communications, P.O. Box 810, Chengdu 610041, China; (2)School of Science, Beijing University of Posts and Telecommunications,Beijing 100876, China; (3)School of Science, Beijing University of Posts and Telecommunications,Beijing 100876, China;State Key Laboratory of Integrated Services Network, Xidian University,Xi'an 710071, China
  • 收稿日期:2005-05-20 修回日期:2006-03-02 出版日期:2006-08-20 发布日期:2006-08-20
  • 基金资助:
    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.

A quantum encryption scheme using d-level systems

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)   

  1. 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 
  • Received:2005-05-20 Revised:2006-03-02 Online:2006-08-20 Published:2006-08-20
  • Supported by:
    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.

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摘要： 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 .

关键词: quantum encryption, d-level, quantum cryptography, quantum information

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 $\rho$.

Key words: quantum encryption, d-level, quantum cryptography, quantum information

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.65.Ud (Entanglement and quantum nonlocality) 03.67.Hk (Quantum communication) 42.50.-p (Quantum optics)