A theoretical quantum communication scheme based on entanglement swapping and superdense coding is proposed with a 3-dimensional Bell state and 2-dimensional Bell state function as quantum channel,quantum key distribu...A theoretical quantum communication scheme based on entanglement swapping and superdense coding is proposed with a 3-dimensional Bell state and 2-dimensional Bell state function as quantum channel,quantum key distribution and quantum secure direct communication can be simultaneously accomplished in the scheme.The scheme is secure and has high source capacity.At last,we generalize the quantum communication scheme to d-dimensional quantum channel.展开更多
基金supported by National Natural Science Foundation of China under Grant No.60703100
文摘A theoretical quantum communication scheme based on entanglement swapping and superdense coding is proposed with a 3-dimensional Bell state and 2-dimensional Bell state function as quantum channel,quantum key distribution and quantum secure direct communication can be simultaneously accomplished in the scheme.The scheme is secure and has high source capacity.At last,we generalize the quantum communication scheme to d-dimensional quantum channel.
