the National High Technology Research and Development Program of China(Grant No.2006AA01Z419);the National Natural Science Foundation of China(Grant Nos.90604023 and 60373059);the National Research Foundation for the Doctoral Program of Higher Edu- cation of China(Grant No.20040013007);the National Laboratory for Modern Communications Science Foundation of China(Grant No.9140C1101010601);the Natural Science Foundation of Beijing(Grant No.4072020);the ISN Open Foundation
From the perspective of information theory and cryptography,the security of two quantum dialogue protocols and a bidirectional quantum secure direct communi-cation(QSDC) protocol was analyzed,and it was pointed out th...
Project supported by the National Natural Science Foundation of China (Grant No 60373059), the Doctoral Programs Foundation of the Ministry of Education of China (Grant No 20040013007), and the Major Research plan of the National Natural Science Foundation of China (Grant No 90604023).
An efficient two-step quantum key distribution (QKD) protocol with orthogonal product states in the (×)(n ≥3) Hilbert space is presented. In this protocol, the particles in the orthogonal product states form t...