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本文在Lin的绝热近似基础上讨论了耦合振子绝热近似的有效性.运用两种不同的波函数,采用微扰论计算非谐和非绝热算符对能量的修正,其结果可以同SCF方法相比较。并且指出了绝热近似的好坏主要由耦合常数的大小决定。
In this paper, we discuss the adiabatic approximation of coupling oscillator based on the adiabatic approximation of Lin.We use two different wave functions to calculate the energy of non-harmonic and non-adiabatic operators by perturbation theory. The results can be compared with SCF method Compare It is also pointed out that the adiabatic approximation is mainly determined by the magnitude of the coupling constant.