supported by Science and Technology Support Project of Sichuan Province of China (2013GZX0137);Fund for Young Persons Project of Sichuan Province of China (12ZB017);the National Natural Science Foundation of China (61100205);Project of the Fundamental Research Funds for the Central Universities of China (2013RC0307);the Cryptography Basic Development of the National ‘12th Five-Year-Plan’ of China on Cryptographic Theory (MMJJ201301004)
Three-particle W states are used as decoy photons,and the eavesdropping detection rate reaches63%.The positions of decoy photons in information sequence are encoded with identity string ID of the legitimate users.Auth...
Supported by the National Natural Science Foundation of China(100774108);the Special Research Founda-tion for the Doctoral Program of Higher Education(20050285002)