单模激光场与两能级原子相互作用的动力学特性

摘要

The interaction of a single-mode laser field with N two-level atoms is described by a Hamiltonian trilinear in the boson operators. It is shown that the dynamics of the system can be determined nearly exactly if laser field is sufficiently weak and mode 2 is strongly populated for all times. The result is compared with previously known approximate result.%本文用三维型哈蜜顿量描述单模激光场与N个两能级原子相互作用.激光场足够弱、模工很强(即处于基态的原子数很大)时,得到了作用系统的动力学规律,并将计算机结果与已知的近似结果进行比较.