微扰算符作用下任意时刻二能级体系激发态跃迁几率研究

Study on the Excited State Transition Probability of the Two-level System under Perturbation Operator at Any Time

研究了微扰算符作用下任意时刻二能级体系的激发态跃迁几率,利用微扰近似方法给出了二能级量子体系的能量本征值、本征波函数、任意时刻的体系状态波函数和激发态的跃迁几率公式,并结合具体实例对理论进行了验证。结果表明微扰近似方法在处理任意时刻二能级体系的激发态跃迁几率问题时是非常便捷和有效的。

In this paper, the excited state transition probability of two-level system under perturbation operator is studied, and the energy eigen value, eigen wave function, system state wave function and excited state transition probability formula of two-level quantum system are given by perturbation approximation method. The results show that the perturbation approximation method is very convenient and effective in dealing with the transition probability of excited states of two-level systems at any time.