Collision-Induced Absorption in Alkali-Metal-Atom—Inert-Gas Mixtures

Model potential calculations are presented of the ground-state potential curves and overlap dipole moments of the alkali-metal-atom---inert-gas-atom pairs LiHe, NaHe, LiNe, and NaNe. The coefficients of collision-induced absorption are evaluated for LiHe and NaHe at temperatures of 300 and 1000 ^∘{}K using both quantum-mechanical and classical theories. The classical approximation accurately reproduces the quantum-mechanical results.