Dipole Spectrum of Lithium

Abstract

Variational methods based upon a multiconfiguration representation of the lithium eigenfunction are used to calculate a model dipole spectrum of lithium. From the model spectrum, values are obtained of the refractive index of lithium at wavelengths longer than 6600 Å, the mean excitation energy controlling the absorption of fast particles, and the van der Waals interactions of lithium with various gases.