2-PHOTON TRANSITIONS IN HYDROGENIC ATOMS VIA A STURMIAN BASIS FOR THEDIRAC-COULOMB GREENS-FUNCTION

Authors
SZYMANOWSKI C VENIARD V TAIEB R MAQUET A
Citation
C. Szymanowski et al., 2-PHOTON TRANSITIONS IN HYDROGENIC ATOMS VIA A STURMIAN BASIS FOR THEDIRAC-COULOMB GREENS-FUNCTION, Europhysics letters, 37(6), 1997, pp. 391-396
Citations number
23
Categorie Soggetti
Physics
Journal title
Europhysics letters → ACNP
ISSN journal
02955075
Volume
37
Issue
6
Year of publication
1997
Pages
391 - 396
Database
ISI
SICI code
0295-5075(1997)37:6<391:2TIHAV>2.0.ZU;2-T
Abstract
Using a Sturmian-like expansion of the (first-order) Dirac Coulomb Gre en's function, the two-photon probability amplitude for the \1(2)S(1/2 )] --> \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 r etardation in both cases.