纠缠度对双光子Jaynes-Cumming模型的光学效应的影响  

Influence of entanglement degree on squeezing and photon antibunching in the two-photon Jaynes-Cummings model

作　　者：张国锋[1] 贾新娟[1] 严启伟[2] 梁九卿[1] 

机构地区：[1]山西大学理论物理研究所,太原030006 [2]中国科学院物理研究所与凝聚态物理中心磁学国家重点实验室,北京100080

出　　处：《物理学报》2003年第10期2393-2398,共6页Acta Physica Sinica

基　　金：国家自然科学基金 (批准号 :10 0 750 32 )资助的课题~~

摘　　要：研究了一对纠缠的二能级原子之一与单模双光子腔场的相互作用 ,当该原子离开腔被选择性测量时 ,发现场态的非经典特性很大程度上取决于两原子间的纠缠度。同时发现通过对原子的选择性测量 。We mainly consider the case that one of the two entangled atoms with two energy levels interacts with a single-mode and double-photon cavity field. The atom is selectively detected after exiting the cavity, and it is found that the nonclassical properties of field states depend strongly on the entanglement degree between the two atoms. Meanwhile, it is proved that the squeezing of the field and the photon antibunching can be greatly enhanced via selective atomic measurements.

关 键 词：双光子Jaynes-Cumming模型 光学效应 纠缠度 二能级原子 单模双光子腔场 相互作用 压缩效应 光子 反聚束效应 量子光学 

分 类 号：O431.2[机械工程—光学工程]