大学物理 ›› 2008, Vol. 27 ›› Issue (9): 4-4.

• 著者文摘 • 上一篇    下一篇

用自洽平均值法计算非线性谐振子本征值

白占国[1] 刘鹏[1] 刘平[1] 白志明[1,2]   

  1. [1]河北科技大学理学院,河北石家庄050018 [2]河北科技大学研究生学院,河北石家庄050018
  • 出版日期:2008-09-25 发布日期:2008-09-20

A self-consistent method to calculate eigen-value of a nonlinear harmonic oscillator

  • Online:2008-09-25 Published:2008-09-20

摘要: 提出了一种自洽平均值法计算非线性谐振子本征值的方法.研究结果表明,等效势能曲线、坐标算符的一次项和二次项的平均值及能量本征值均在主量子数n较小时与微扰量子理论相吻合,在n=0时两者完全一致.

关键词: 量子力学, 自洽方法, 微扰理论, 非线性谐振子

Abstract: A new self-consistent method for calculating the eigen-value of a nonlinear harmonic oscillator is proposed. The results show that the equivalent potential, the average value of coordinate operators, and the eigenvalue energy are in agreement with those by using the perturbation method in the case of small quantum number, indeed, the both are the same at zero quantum number.

Key words: quantum mechanics, self-consistent method, perturbation theory, nonlinear harmonic oscillator

中图分类号: 

  • O413.1