Quantum Key Distribution Scheme with High Efficiency
Gan Gao
Based on entanglement swapping, a quantum key distribution (QKD) scheme is proposed. In this scheme, the secret keys are formed by comparing initial Bell states and outcomes of entanglement swapping. Moreover, all initial Bell states prepared by Alice and Bob are completely arbitrary. As the classical information exchanged between two parties is very little, this QKD scheme has a high efficiency. In addition, in order to prevent eavesdropping, decoy particles are used.
Communications in Theoretical Physics•May 1, 2009•24 citations