Dynamic Polarizabilities and Refractive Indexes ofH−andLi+Ions

Abstract

A variational perturbation method is used to evaluate the first-order wave functions of ${\mathrm{H}}^{-}$ and ${\mathrm{Li}}^{+}$ in the presence of a monochromatic electromagnetic field. These functions are utilized to calculate the dynamic polarizabilities and refractive indexes of ${\mathrm{H}}^{-}$ and ${\mathrm{Li}}^{+}$ ions. Converged results are obtained for both systems. The converged static polarizability of ${\mathrm{H}}^{-}$ in the present calculation is shown to be 206.0 a.u., which compares favorably with previous theoretical calculations. The wavelength for the ${\mathrm{Li}}^{+}1{}_{}{}^1{}_{}{}^{}S-2{}_{}{}^1{}_{}{}^{}p$ transition from the dynamic polarizability calculation, 199.16 Å, is compared with the exact theoretical value of 199.32 Å.