选择原子测量对原子与光场耦合中场量子特性的影响  

Quantum Properties of the Field in the System of Λ-type Three-level Atom Interacting with Two-mode Coherent Light Field

作　　者：卢道明[1] 

机构地区：[1]武夷学院电子工程系,福建武夷山354300

出　　处：《光子学报》2010年第9期1631-1635,共5页Acta Photonica Sinica

基　　金：福建省自然科学基金(2008J0217)资助

摘　　要：考虑两个初始处于纠缠态的Λ型三能级原子,将其中一原子注入双模腔中与光场发生共振相互作用的情况.采用数值计算方法,研究了对腔外原子的选择测量对双模光场的压缩效应和反聚束效应的影响.研究结果表明:采用选择原子测量方法,可实现光场压缩效应和反聚束效应的明显增强.Considering two Λ-type three-level atoms initially in the entangled state, one atom is poured into the cavity and interacts with a two-mode cavity. The squeezing and antibunching effects of the field are investigated. The influences of the selective atomic measurement and the intensity of the coherent field, which interacts with atom on squeezing and antibunching effect of the field, are discussed. The results obtained by numerical calculations show that squeezing and antibunching effect of the field can be strengthened through selective atomic measurement for atom outside of the cavity.

关 键 词：量子光学 选择原子测量 Λ型三能级原子 压缩效应 反聚束效应 

分 类 号：O431.2[机械工程—光学工程]