Theoretical Investigation of Radiative Lifetimes and Rydberg Levels Sequence in Indium I:

Abstract

The weakest bound electron potential model theory (WBEPMT) is an effective semi-empirical method developed by Zheng et al. in 2004 for commutating atomic spectroscopic parameters, particularly for high lying Rydberg levels. Employing this theory paper, we theoretically computed the series of Rydberg levels and Radiative lifetimes with their quantum defects in neutral Indium (In I) for the states having term values: ²D_3/2, ²D_5/2, ²F°_5/2, ²F°_7/2, ²P°_1/2, ²P°_3/2 and ²S_1/2. The result of lifetime is compared with Yildiz’s work and found to be in good agreement. This work is also an extension of Yildiz’s work. The Rydberg energies and quantum defects of ²F°_5/2, ²F°_7/2 are presented first time.

Keywords: Quantum defects, Radiative lifetime, Weakest bound electric potential model, Rydberg levels, Indium