Raman耦合模型中原子的约化密度算符  

The Reduced Atomic Density Operator in the Raman-coupled Model

作　　者：曲照军[1] 吴曙东[1] 

机构地区：[1]华中科技大学物理系

出　　处：《华中科技大学学报（自然科学版）》2001年第1期90-92,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

摘　　要：研究了Λ位型的三能级Raman耦合模型中系统的态函数随时间的演化关系 ,在此基础上导出了原子的约化密度算符随时间的演化关系 ,讨论了光子数的平均值及原子的反转等问题 .In the three level Raman coupled model in Λ configuration, the state of the system evolving as time is investigated. The reduced atomic density operator evolving as time is derived on the basis of the above investigation, and the average number of photons in each mode and the atomic inversion et al. are discussed.

关 键 词：Raman耦合模型 原子 约化密度算符 反转 态函数 能级 光子数 

分 类 号：O562.1[理学—原子与分子物理]