选择原子测量对光场反聚束效应的影响  

Influence of Selective Atomic Measurement on Anti-Bunching Effect of Light Field

作　　者：郑乃清[1] 

机构地区：[1]宁德师范学院物理与电气工程系,福建宁德352100

出　　处：《洛阳师范学院学报》2011年第2期22-26,71,共6页Journal of Luoyang Normal University

摘　　要：采用数值计算方法,研究了初始处于SU(2)相干态的双模腔场与一个Ⅴ型三能级原子共振相互作用系统的光场反聚束效应.讨论了选择原子测量以及两个腔模总光子数、配分参量、耦合系数和原子初态对光场反聚束效应的影响.结果表明:对原子进行态选择测量或原子初始处于低能级,a模的反聚束效应明显地增强;当两个腔模的耦合系数相同并直接对原子进行态选择测量时,光场的反聚束效应不随时间改变;减少两个腔模的总光子数M,光场的反聚束效应明显地增强.Anti-bunching effect of the light field in the system of a two-mode field initially in an SU （2） coherent state resonantly interacting with a three-level V-type atom are investigated by numerical calculations. The influences of the selective atomic measurement, the total photon of the tow-mode, the partition parameter, the coupling constant and the atomic initial state on the anti-bunching effect of the light field is discussed. The results indicate ： the a mode anti-bunching effect is distinctly enhanced when the state-selective measurement is performed on the atom or the atom is initially on the lower level ; the anti-bunching effect of the field does not change over time when the tow coupling constants are same and the direct state-selective measurement is performed on the atom; the anti-bunching effect of the two mode of the field is distinctly enhanced when the total photon number of the two-mode is decreased.

关 键 词：量子光学 选择原子测量 SU(2)相干态场 V型三能级原子 反聚束效应 

分 类 号：O431[机械工程—光学工程]