非旋波近似下光场与级联型三能级原子相互作用系统的场熵演化特性  

Field Entropy Evolution of the Interaction Between Three-level Cascade Atom and Light Field Without Rotating Wave Approximation

作　　者：刘素梅[1] 

机构地区：[1]南京理工大学理学院,南京210094

出　　处：《量子电子学报》2003年第6期725-732,共8页Chinese Journal of Quantum Electronics

摘　　要：本文采用全量子化理论,研究了非旋波近似下级联型三能级原子与单模光场相互作用过程中受激场场熵的演化规律,通过与旋波近似下的相应结果进行比较,进一步揭示出非旋波近似下虚光场效应和初始场的平均光子数对场熵演化特性的影响.In this paper, the field entropy evolution in the system of three-level cascade atom interacting with a single mode light field is studied by means of the quantum theory without rotating wave approximation. Compared with the result of rotating wave approximation, the influence of the virtual photon field and of the initial mean photon number on the evolution of field entropy is also discussed.

关 键 词：非旋波近似 级联型三能级原子 虚光场效应 受激场熵 全量子化理论 

分 类 号：O431.2[机械工程—光学工程]