相干态光场与耦合双原子系统中光子的统计性质  

The Photonic Statistical Property in the System of Optofield with Cohorent State and Coupled Diatoms

作　　者：李文华[1] 彭景翠[2] 黄春佳[3] 陈小华[1] 

机构地区：[1]湖南大学材料科学与工程学院,湖南长沙410082 [2]湖南大学物理与微电子科学学院,湖南长沙410082 [3]长沙理工大学物理与信息工程系,湖南长沙410077

出　　处：《湖南大学学报（自然科学版）》2007年第5期62-65,共4页Journal of Hunan University:Natural Sciences

基　　金：国家博士点基金资助项目(20030532008)

摘　　要：采用全量子理论和数值计算方法求解了旋波近似下相干态光场与耦合双原子相互作用的系统波函数,分析了原子的初始状态和原子间偶极偶极相互作用Ω对光子统计性质的影响.数值计算结果显示:原子间偶极偶极相互作用Ω对光子的超泊松分布效应无明显影响,但崩塌-回复周期却随Ω的增大而减小,近似成反比关系;系统初始状态对光子的超泊松分布效应有明显影响,而对崩塌回复周期无影响.The wave functions of the interactive system of optofield with coherent state and coupled diatoms were solved by using full quantum theory under the rotating-wave approximation, and their numerical results were given. The influence of the atom dipole-dipole interaction, and the initial state of the diatoms on the photonic statistical property was studied. The results obtained by means of numerical method indicated that the photonic statistical property was little influenced by the atoms dipole-dipole interaction Ω. While the periods of the collapse-revival became short up to inverse proportion with the increase of Ω. On the other hand, the photonic statistical property was greatly influenced by. the initial state of the diatoms, and the periods of the collapse-revival were invariable.

关 键 词：偶极-偶极相互作用 耦合双原子 光子统计性质 二能级原子 

分 类 号：O431.2[机械工程—光学工程]