Asymptotic description of the Rydberg states with L>0 in a two-electron atom

Abstract

The energies of the levels belonging to a Rydberg series 1snp 1,3P in a two electron atom have been determined by means of the quantum defect theory for a two-electron atom with nuclear charge Z considered as a parameter. Comparison with configuration interaction calculations suggests that the analytic quantum defect expression for the energy levels may be in fact asymptotically exact as Z → 1, providing an analytic description of the disappearance of the Rydberg states with L > 0 when Z approaches the value of 1. Show more