Line Profile Asymmetry in Precision Spectroscopy

2022/04/26 by A. Anikin, Anikin, A., T. Zalialiutdinov +5
Chemistry · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #Atomic and Molecular Physics #FOS: Physical sciences #Spectroscopy and Laser Applications #Spectroscopy and Quantum Chemical Studies

paper · pdf · doi:10.48550/arxiv.2204.12199

openalex publication_date 2022/04/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this review, we have investigated the asymmetry of the line profile in precision one- and two-photon spectroscopy of hydrogen and helium atoms within the framework of a rigorous QED approach. A detailed analysis of the angular correlations of the quantum interference effect has been carried out using various examples. Nonresonant effects are also considered in relation to some astrophysical problems. In particular, a rigorous QED derivation of the nonresonant extension for the Lorentz line profile is given using the Ly_α transition as an example; such a QED derivation has been lacking in the literature.

Related

• Handling the asymmetric spectral line profile
• Reassessment of line profile asymmetry in measurements of the 1s-2s energy interval in hydrogen
• Lineshape-asymmetry-caused shift in atomic interferometers
• Nonresonant effects in one- and two-photon transitions
• Precision spectroscopy of the 2S-nP transitions in atomic hydrogen