中国物理B ›› 2006, Vol. 15 ›› Issue (7): 1418-1420.doi: 10.1088/1009-1963/15/7/005

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Secure quantum dialogue based on single-photon

计新, 张寿   

  1. Department of Physics, College of Science, Yanbian University, Yanji 133002, China
  • 收稿日期:2006-01-05 修回日期:2006-02-09 出版日期:2006-07-20 发布日期:2006-07-20
  • 基金资助:
    Project supported by the Science Foundation of Yanbian University of China (Grant No 2005-20).

Secure quantum dialogue based on single-photon

Ji Xin (计新), Zhang Shou (张寿)   

  1. Department of Physics, College of Science, Yanbian University, Yanji 133002, China
  • Received:2006-01-05 Revised:2006-02-09 Online:2006-07-20 Published:2006-07-20
  • Supported by:
    Project supported by the Science Foundation of Yanbian University of China (Grant No 2005-20).

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摘要： In this paper a quantum dialogue scheme is proposed by using N batches of single photons. The same secret message is encoded on each batch of single photons by the sender with two different unitary operations, and then the N batches of single photons are sent to the receiver. After eavesdropping check, the message is encoded on the one remaining batch by the receiver. It is shown that the intercept-and-resend attack and coupling auxiliary modes attack can be resisted more efficiently, because the photons are sent only once in our quantum dialogue scheme.

关键词: quantum dialogue, single photon, unitary operation

Abstract: In this paper a quantum dialogue scheme is proposed by using N batches of single photons. The same secret message is encoded on each batch of single photons by the sender with two different unitary operations, and then the N batches of single photons are sent to the receiver. After eavesdropping check, the message is encoded on the one remaining batch by the receiver. It is shown that the intercept-and-resend attack and coupling auxiliary modes attack can be resisted more efficiently, because the photons are sent only once in our quantum dialogue scheme.

Key words: quantum dialogue, single photon, unitary operation

中图分类号:  (Quantum mechanics)

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