Spectroscopy of Atoms in Liquid Helium Environment: A Theoretical Perspective

Abstract

This brief review is dedicated to provide possible interpretations of spectral properties such as the energy levels, spectral line positions and line profiles of atoms embedded in a liquid helium environment from a theoretical standpoint, keeping in view the wide range of availability of highly precise laser spectroscopic data in this field. Different models adopted for the interpretation of the experimental data as well as current quantum mechanical viewpoints in this regard have been described. Possible future direction for the interpretation of the available experimental data is suggested.