电偶极辐射跃迁选择定则与守恒定律

Transition Selection Rules of Electric Dipole Radiation and Conservation Laws

本文从角动量守恒定律和宇称守恒定律出发，运用量子化角动量的矢量合成法则以及关于波函数的初步知识，给出了电偶极辐射跃迁选择定则的简单推导，力求在原子物理范围说明跃迁选择定则是跃迁中角动量守恒和宇称守恒的表现．

According angular momentum conservation law and parity conservation law, this paper deduces simply transition selection rules of electric dipole radiation with composition rule of quantum angular momentum and preliminary knowledge about wave function, and explains that the transition selection rules of electric dipole radiation are behavious of angular momentum conservatlon and parity conservation within the scope of atomic physics.