期刊
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
卷 455, 期 4-6, 页码 135-246出版社
ELSEVIER
DOI: 10.1016/j.physrep.2007.10.003
关键词
quantum electrodynamics; quantum electrodynamic corrections; highly charged ions; spectral line profiles; two-photon transitions; hydrogen atom; two-photon exchange; quasidegeneracy; transition energy; transition amplitude
A review of the current status of the theoretical study of spectral line profile for systems with few electrons is given in this paper. The hydrogen atom and highly charged ions are presented in this work. In particular, the line profiles for cascade processes, the asymmetry of the line profile beyond the resonance approximation and the overlap of the resonances are investigated. The line profile approach is introduced for the investigation of the energy levels and the transition probabilities for bound electrons within the framework of quantum electrodynamics. The energies and transition probabilities for few-electron systems are evaluated. The line profile approach is also applied to the case of the quasidegenerate levels in highly charged ions. (c) 2007 Elsevier B.V. All rights reserved.
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