Quantum secure direct dialogue using Einstein-Podolsky-Rosen pairs

• 作 者: ZHENG Chao
• 机 构: StateKeyLaboratoryofLow-DimensionalQuantumPhysicsandDepartmentofPhysics,TsinghuaNationalLaboratoryfo
• 出 处: 中国科学：物理学、力学、天文学英文版
• 发表日期: 2014年7期
• 关键词: 量子比特 爱因斯坦 安全性 对话 通信协议 EPR对 量子通道 秘密信息 quantum communication QSDC QSDD EPR pairs
• 基金项目: supported by the National Natural Science Foundation of China（Grant Nos.10874098 and 11175094）, the National Basic Research Program of China（Grant Nos.2009CB929402 and 2011CB9216-002）

A two-step quantum secure direct dialogue protocol using Einstein-Podolsky-Rosen(EPR)pair block is proposed.In the protocol,the dialogue messages are encoded on series of qubits and sent through a quantum channel directly.The security of the protocol is a