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二维转子系统是在任何时刻的位置可以由主轴的空间方位角θ,φ确定,将双原子分子看作一根细的两端联接着质量为m1和m2的两个质点绕其质心的转动,这样就把两体问题转化为单体问题。文章根据经典力学和量子力学来研究二维线性转子系统和对二维线性转子系统推导出配分函数并讨论对应的物理量。
The position of a two-dimensional rotor system at any moment can be determined by the azimuth angles θ and φ of the principal axis. The diatomic molecule is considered as a thin two-end rotor with two mass points of mass m1 and m2 around its center of mass , Thus turning the two-body problem into a single problem. Based on classical mechanics and quantum mechanics, the paper studies the two-dimensional linear rotor system and deduces the partition function and discusses the corresponding physical quantities for the two-dimensional linear rotor system.