摘要
量子隐形传态利用了量子的纠缠特性,在物理层实现了不可破译的量子密码通信。文章从信息论的角度描述了量子纠缠态的特性,给出了实现量子纠缠态的物理门线路;利用该量子纠缠态的量子线路,分析隐形传态的通信模型,给出了利用Bell态实现隐形传态的简单结构的量子线路,证明该量子线路是可行的,为进一步研究量子密码通信提供参考。
Quantum teleportation can realize quantum cryptography communication which can not be deciphered in the physical layer using quantum entangled state. Described characteristics of the quantum entangled state, given out physics gate circuit which can realize quantum entangled ; used the quantum circuit, analysised communication model of teleportation, gived out a quantum circuit to realize quantum teleportation base on Bell State which has simpler structure, proved the quantum circuit is feasible, laied the foundations to study quantum cryptography communication further.
出处
《量子光学学报》
CSCD
北大核心
2008年第3期223-228,共6页
Journal of Quantum Optics
关键词
量子比特
量子纠缠态
BELL态
隐形传态
quantum bit
quantum entangled state
Bell state
quantum teleportation
