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

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.