腔外原子选择测量对腔内原子量子性质的调控  

Controlling the Quantum Properties of Atom inside A Cavity via Manipulating An Atom outside the Cavity

作　　者：李文欢[1] 田永红[1] 张金铉[1] 张瑞[1] 

机构地区：[1]长江大学物理科学与技术学院,湖北荆州434023

出　　处：《长江大学学报（自科版）（上旬）》2013年第5期14-17,2,共4页JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG

基　　金：湖北省高等学校科研基金项目(2002B04002);湖北省高层次人才计划资助项目

摘　　要：考虑了2个初始处于纠缠态的级联三能级原子,将其中一个原子注入高Q腔中与单模压缩真空场发生共振相互作用。利用全量子理论和数值计算方法研究了腔外原子的选择测量对腔内原子偶极振幅平方压缩的影响。结果表明,通过对腔外原子进行选择性测量,可调控腔内原子的偶极振幅平方压缩。By considering two cascade three-level atom initially in the entanglement state,one atom is poured into a highQ cavity and is interacted with a single-mode squeezed vacuum field.The influence of selective measurement on the dipole amplitude-squared squeezing of an atom inside the cavity is investigated by means of full quantum theory and numerical calculations.The result shows that the dipole amplitude-squared squeezing of an atom inside the cavity can be controlled through selective atomic measurement of atom outside the cavity.

关 键 词：级联三能级纠缠原子 压缩真空场 腔外原子 腔内原子 原子偶极振幅平方压缩 选择测量 

分 类 号：O431.2[机械工程—光学工程]