By swapping the entanglement of genuine four-particle entangled states,we propose a bidirectional quantumsecure communication protocol.The biggest merit of this protocol is that the information leakage does not exist....By swapping the entanglement of genuine four-particle entangled states,we propose a bidirectional quantumsecure communication protocol.The biggest merit of this protocol is that the information leakage does not exist.Inaddition,the ideas of the 'two-step' transmission and the block transmission are employed in this protocol.In order toanalyze the security of the second sequence transmission,decoy states are used.展开更多
基金Supported by the Natural Science Foundation of Anhui Province under Grant No.KJ2010B236
文摘By swapping the entanglement of genuine four-particle entangled states,we propose a bidirectional quantumsecure communication protocol.The biggest merit of this protocol is that the information leakage does not exist.Inaddition,the ideas of the 'two-step' transmission and the block transmission are employed in this protocol.In order toanalyze the security of the second sequence transmission,decoy states are used.
