Eigenstates of the (sp) 3P Multiplet for Two‐Electron Atoms and Phonon‐Induced Optical Transitions

Abstract

Eigenfunctions of L², S², J², and J_z have been obtained for the (sp) ³P multiplet. Matrix elements of the linear electron‐lattice interaction show how only Γ₁₂ and Γ′₂₅phonons relax selection rules to permit electric dipole transitions to ³P₀ and ³P₂ states. It is suggested that the ³P₀ state may play a significant role in both absorption and emission processes for mercury‐like impurities in alkali halides.