Two-photon transitions in hydrogenic atoms via a Sturmian basis for the Dirac Coulomb Green's function

TitleTwo-photon transitions in hydrogenic atoms via a Sturmian basis for the Dirac Coulomb Green's function
Publication TypeJournal Article
Year of Publication1997
Szymanowski, C, Veniard, V, Taieb, R, Maquet, A
JournalEUROPHYSICS LETTERS
Volume37
Issue6
Pagination391-396
Date PublishedFEB 20
ISSN0295-5075
Keywordspaper
Abstract

Using a Sturmian-like expansion of the (first-order) Dirac Coulomb Green's function, the two-photon probability amplitude for the \textbackslash{}1(2)S(1/2)] –> \textbackslash{}2(2)S(1/2)] transition in hydrogenic systems is calculated as a function of nuclear charge Z. A comparison between relativistic and non-relativistic treatments is made, taking care of the influence of retardation in both cases.

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