运动纠缠双原子与二项式光场相互作用的纠缠特性  

Quantum entanglement of binomial state light field interacting with the moving entangled diatomic

作　　者：宫艳丽[1] 萨楚尔夫[2] 张采花 GONG Yan-Li;Sachuerfu;ZHANG Cai-Hua(Inner Mongolia Vocational and Technical College,Huhhot 010022,China;Library of Inner Mongolia Normal University,Huhhot 010022,China)

机构地区：[1]内蒙古电子信息职业技术学院,呼和浩特市010022 [2]内蒙古师范大学图书馆,呼和浩特市010022

出　　处：《原子与分子物理学报》2020年第1期102-107,共6页Journal of Atomic and Molecular Physics

基　　金：内蒙古自治区自然科学基金(2013MS0115);内蒙古师范大学“十百千”人才基金(RCPY-2-2012-K-038);内蒙古自治区高等学校科研项目(NJZC312)。

摘　　要：本文主要利用量子熵理论,讨论运动纠缠双原子与二项式光场的量子纠缠特性随时间的演化规律,结果表明:光场与原子纠缠度依赖于场模结构参数、光场的调节参量以及光子数.场模结构参数改变,影响纠缠周期性的变化且纠缠度随其增大而降低;当场调节参数处于中间值时,场熵呈明显周期性变化,系统纠缠度最大,退纠缠持续时间最短;光子数的改变不影响场熵演化的周期性,但是会影响周期内振荡频率和纠缠度的最大值.The theory of quantum entropy is used to discuss the evolution of the quantum entanglement properties of the moving entangled diatomic and binomial light fields with time.The results show that the light field and atomic entanglement depend on the field mode structure parameters,the adjustment parameters of the light field and the number of photons.The change of field mode structure parameters affects the change of entanglement periodicity and the entanglement degree decreases as it increases.When the field adjustment parameters are at the intermediate value,the field entropy changes significantly,the system entanglement is the largest,and the entanglement duration is the shortest.The change in the number of photons does not affect the periodicity of the evolution of the field entropy,but it affects the maximum value of the oscillation frequency and entanglement in the period.

关 键 词：量子光学 运动纠缠双原子 二项式光场 场熵 

分 类 号：O431.2[机械工程—光学工程]