中国物理B ›› 2008, Vol. 17 ›› Issue (7): 2352-2355.doi: 10.1088/1674-1056/17/7/005
周宏余1, 李春燕2, 李熙涵2, 邓富国2
Li Chun-Yan(李春燕)a)b)c), Li Xi-Han(李熙涵)a)b)c), Deng Fu-Guo(邓富国)a)d)†, and Zhou Hong-Yu(周宏余)a)b)c)
摘要: This paper presents a simple way for an eavesdropper to eavesdrop freely the secret message in the experimental realization of quantum communication protocol proposed by Beige et al (2002 Acta Phys. Pol. A 101 357). Moreover, it introduces an efficient quantum secure communication protocol based on a publicly known key with decoy photons and two biased bases by modifying the original protocol. The total efficiency of this new protocol is double that of the original one. With a low noise quantum channel, this protocol can be used for transmitting a secret message. At present, this protocol is good for generating a private key efficiently.
中图分类号: (Quantum cryptography and communication security)