Efficient quantum dialogue without information leakage
Aihan Yin, Zhi-Hui Tang, Dong Chen
A two-step quantum dialogue scheme is put forward with a class of three-qubit W state and quantum dense coding. Each W state can carry three bits of secret information and the measurement result is encrypted without information leakage. Furthermore, we utilize the entangle properties of W state and decoy photon checking technique to realize three-time channel detection, which can improve the efficiency and security of the scheme.
Modern Physics Letters B•Feb 20, 2015•11 citations