量子纠缠控制的核磁共振实验演示  

DEMONSTRATION OF QUANTUM ENTANGLEMENT CONTROL USING NUCLEAR MAGNETIC RESONANCE

作　　者：谢竞祎[1] 张竞夫[2] 邓志威[3] 卢志恒[2] 

机构地区：[1]北京师范大学射线束技术及材料改性教育部重点实验室 [2]北京师范大学物理学系 [3]北京师范大学分析测试中心,北京100875

出　　处：《北京师范大学学报（自然科学版）》2004年第5期641-642,共2页Journal of Beijing Normal University(Natural Science)

基　　金：国家自然科学基金资助项目 (10 374 0 10 )

摘　　要：As two forms of the quantum entanglement control (QEC), the quantum entanglement swapping and preservation are demonstrated in a three-qubit nuclear magnetic resonance (NMR) quantum computer. The pseudopure state is prepared to represent the entangled states through macroscopic signals. Through controlling the interactions between the system and its environment, we can preserve an initial entangled state for a longer time. Experimental results show an agreement between theory and experiment.As two forms of the quantum entanglement control (QEC), the quantum entanglement swapping and preservation are demonstrated in a three-qubit nuclear magnetic resonance (NMR) quantum computer. The pseudopure state is prepared to represent the entangled states through macroscopic signals. Through controlling the interactions between the system and its environment, we can preserve an initial entangled state for a longer time. Experimental results show an agreement between theory and experiment.

关 键 词：量子纠缠 纯态 量子相干 微观性质 量子力学 核磁共振 实验演示 课题 初始状态 表述 

分 类 号：N031[自然科学总论—科学技术哲学] O413[理学—理论物理]