Natural line profile asymmetry

The paper discusses the line profile asymmetry of the photon scattering process that arises naturally in quantum electrodynamics (QED). Based on precision spectroscopic experiments conducted on hydrogen atoms, we focus our attention on the two-photon 1 s − 2 s transition. As one of the most precisel...

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Bibliographic Details
Published in:Physica scripta 2023-04, Vol.98 (4), p.45407
Main Authors: Anikin, A, Zalialiutdinov, T, Solovyev, D
Format: Article
Language:English
Subjects:
hydrogen atom
line profile
precision spectroscopy
quantum electrodynamics
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Summary:The paper discusses the line profile asymmetry of the photon scattering process that arises naturally in quantum electrodynamics (QED). Based on precision spectroscopic experiments conducted on hydrogen atoms, we focus our attention on the two-photon 1 s − 2 s transition. As one of the most precisely determined transition frequencies, it is a key pillar of optical frequency standards and is used in determining fundamental physical constants, testing physical principles, and searching constraints on new fundamental interactions. The results obtained in this work show the need to take into account the natural line profile asymmetry in precision spectroscopic experiments.
ISSN:0031-8949
1402-4896
DOI:10.1088/1402-4896/acc28d