Introducing the concept of oscillator strength in the initial quantum mechanics courses

Abstract In this paper, a sum rule for electron transitions between atomic states, proposed by Thomas, Reiche and Kuhn (TRK), presented only, and at most, in advanced courses, is examined in a didactic way for the case of transitions between states of electrons in two familiar systems, the one-dimensional finite and infinite potential wells, traditionally studied in introductory disciplines of quantum mechanics in undergraduate physics courses.

摘要：本文以教学阐释的方式，针对本科物理量子力学入门课程中常规讲授的两类经典系统——一维有限势阱与无限深势阱内的电子态间跃迁场景，对仅在高等进阶课程中讲授的托马斯-赖希-库恩（TRK）原子态间电子跃迁求和定则展开了探讨。