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利用近年发展起来的随机量子轨迹方法，对Ｈａａｋｅ等人提出的三能级原子超辐射激光模型作了进一步讨论。给出了原子布局数随时间的演化及其稳恒值对抽运参数ｐ的依赖关系。结果表明，当原子为有限时，在ｐ＝０和ｐ＝１处并不出现一级和二级相变。
Using the random quantum trajectory method developed in recent years, the three-level atomic hypersensitivity laser model proposed by Haake et al is further discussed. The evolution of atomic number with time and the dependence of its steady value on the pumping parameter p are given. The results show that there is no first-order and second-order phase transitions at p = 0 and p = 1 when the atoms are finite.