Light Shifts Due to Real Transitions in Optically Pumped Alkali Atoms

Light shifts and line narrowings due to real transitions in alkali atoms have been calculated for well-resolved $\Delta m=0\mathrm{}$, $\Delta F=1\mathrm{}$ transitions between ground-state sublevels. The shifts vary in a systematic way for the various $\Delta m=1\mathrm{}$ transitions. Resonant increases in the magnitude of the shift occur in the neighborhood of certain critical magnetic fields. The calculations are in excellent agreement with the recent experimental results of White, Hughes, Hayne, and Robinson.