Relativistic and QED corrections for the ground state lithiumlike ionization energies

Autor:	William P. Earwood, Steven R. Davis
Rok vydání:	2021
Předmět:	Physics Nuclear physics Ionization energy Condensed Matter Physics Ground state Atomic and Molecular Physics and Optics
Zdroj:	Journal of Physics B: Atomic, Molecular and Optical Physics. 54:215001
ISSN:	1361-6455 0953-4075
DOI:	10.1088/1361-6455/ac3e4d
Popis:	The ground state ionization energies of Z ⩽ 10 lithiumlike ions are calculated using fully correlated Gaussian wavefunctions. Leading-order relativistic corrections are evaluated, while QED corrections are established with small uncertainties by directly calculating the Araki–Sucher energy and expanding the three-electron Bethe logarithm in 1/Z. The non-relativistic α6 level shifts have also been calculated, and we have used these energies to recommend ionization energies, which include estimates of the influence of the relativistic portion of the α6 energy. The results emphasize the importance of the direct computation of the complete α6 correction, but also the need for new, higher accuracy experimental ionization limits.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36dca83a812daa57fe53bc8ad2dd8178 https://doi.org/10.1088/1361-6455/ac3e4d Zobrazit plný text záznamu