多光子跃迁下Pólya态光场与耦合双原子相互作用系统的量子特性  

Quantum Properties in a System of Two Coupled Atoms Interacting with Pólya State Light for Multi-photon Transition

作　　者：赵嫱嫱 萨楚尔夫[1,2] 李婧楠 

机构地区：[1]内蒙古师范大学物理与电子信息学院,内蒙古呼和浩特010022 [2]内蒙古师范大学图书馆,内蒙古呼和浩特010022

出　　处：《河北师范大学学报（自然科学版）》2018年第1期31-37,共7页Journal of Hebei Normal University：Natural Science

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)

摘　　要：利用全量子理论,对伴随多光子跃迁时,耦合双原子与Pólya态光场相互作用系统的第1个原子线性熵和原子的粒子布局数反转进行了研究,主要分析了量子化辐射场的参数、跃迁光子数等物理参量对系统中原子的粒子布局数反转和第1个原子线性熵的影响.结果显示:随着跃迁光子数的增大,粒子布局数反转的崩塌-复原现象之间的间隔时间缩短,并且使第1个原子线性熵的幅值变化;光场分布参数r的增大,使第1个原子线性熵的振荡周期的最小值减小,且粒子布局数反转的回复-崩塌现象不再发生;光场概率参数η的增加使得粒子布局数反转和原子第一线性熵的振荡周期及振幅发生变化.With the multi-photon transition,the atomic inversion and linear entropy in a system of two coupled atoms interacting with the Polya state are studied by means of the full quantum theory. The influences of the optical field parameters and the numbers of the transition photons on the atomic inversion and linear entropy are analyzed. The results show that the increase of the numbers of the transition photons, the interval time between the collapse-recovery of the atomic inversion phenomenon is shortened, and the amplitude of linear entropy can be changed. With the increase of the optical field distribution parameter r,the collapse-recover of the atomic inversion can be eliminated and the minimum value of the oscillation period of linear entropy can be decreased ; when the value of parameter η increases,the period and the amplitude of the oscillation of the atomic inversion and linear entropy will be changed.

关 键 词：量子光学 Pólya态光场 双原子 多光子跃迁 布局数反转 线性熵 

分 类 号：O431.2[机械工程—光学工程]