The role of line profile asymmetry in precision spectroscopy

被引：0
作者：
Solovyev, Dmitry A. [1 ,2 ]
Zalialiutdinov, Timur A. [1 ,2 ]
Anikin, Aleksei A. [1 ,3 ]
Labzowsky, Leonti N. [1 ,2 ]
机构：
[1] St Petersburg State Univ, Dept Phys, Ulianovskaya 1, St Petersburg 198504, Russia
[2] Kurchatov Inst, BP Konstantinov Petersburg Nucl Phys Inst, Natl Res Ctr, Leningrad Dist, Gatchina 188300, Leningrad Distr, Russia
[3] DI Mendeleev Inst Metrol, St Petersburg 190005, Russia
来源：
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS | 2025年 / 1114卷
基金：
俄罗斯科学基金会; 俄罗斯基础研究基金会;
关键词：
Precision spectroscopy; Line profile; S-matrix; Quantum electrodynamics; Multiphoton processes; Atomic transitions; Frequency measurements; LAMB SHIFT MEASUREMENTS; NONRESONANT CORRECTIONS; FREQUENCY-MEASUREMENT; RYDBERG CONSTANT; ATOMIC-HYDROGEN; ENERGY-LEVELS; LYMAN-ALPHA; TRANSITION FREQUENCY; 2S-12D TRANSITIONS; DEUTERIUM;
D O I：
10.1016/j.physrep.2025.02.001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 alpha transition as an example; such a QED derivation has been lacking in the literature. (c) 2025 Elsevier B.V. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
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页码：1 / 40
页数：40
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