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Optics and Spectroscopy, 2020, Volume 128, Issue 1, Pages 24–33
DOI: https://doi.org/10.21883/OS.2020.01.48834.260-19 (Mi os491) 		 
This article is cited in 3 scientific papers (total in 3 papers)

Spectroscopy and physics of atoms and molecules

Calculations of relativistic, correlation, nuclear and quantum-electrodynamic corrections to energy and ionization potential of the ground state of helium-like ions

I. I. Tupitsynabc, S. V. Bezborodova, A. V. Malysheva, D. V. Mironovaacd, V. M. Shabaeva

a St. Petersburg State University, Faculty of Physics
b Center for Advanced Studies of St.-Petersburg Polytechnic University
c B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences
d Saint Petersburg Electrotechnical University "LETI"
Full-text PDF (176 kB) Citations (3)
DOI: https://doi.org/10.21883/OS.2020.01.48834.260-19
Abstract: In this work, nonrelativistic and relativistic variational calculations of the energies and ionization potentials of the ground state of helium-like ions for the nuclear charges in the range $Z$ = 2 – 20 were performed.the leading corrections to the total energy were calculated including the contribution of electronic correlations, relativistic and quantum-electrodynamic (QED) corrections, and the contributions of the finite size ofnucleus (field shift) and the finite mass of the nucleus (recoil effect). Relativistic сalculations of the wave functions were performed using the Dirac-Coulomb-Breit (DCB) Hamiltonian.
Keywords: He-like ions, relativistic calculations, configuration interaction, ionization potential, electron correlation, Breit interaction, field shift, recoil effect, QED corrections.
Funding agency Grant number
Russian Foundation for Basic Research 18-03-01220
17-02-00216
Ministry of Science and Higher Education of the Russian Federation 3.1463.2017/4.6
Saint Petersburg State University 37717909
This study was supported by the Russian Foundation for Basic Research, projects nos. 18-03-01220 and 17-02-00216. I.I. Tupitsyn acknowledges the support of the Ministry of Education and Science of the Russian Federation (grant no. 3.1463.2017/4.6) and St. Petersburg State University (grant no. 37717909).
Received: 12.09.2019
Revised: 12.09.2019
Accepted: 23.09.2019
English version:
Optics and Spectroscopy, 2020, Volume 128, Issue 1, Pages 21–31
DOI: https://doi.org/10.1134/S0030400X20010245
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: I. I. Tupitsyn, S. V. Bezborodov, A. V. Malyshev, D. V. Mironova, V. M. Shabaev, “Calculations of relativistic, correlation, nuclear and quantum-electrodynamic corrections to energy and ionization potential of the ground state of helium-like ions”, Optics and Spectroscopy, 128:1 (2020), 24–33; Optics and Spectroscopy, 128:1 (2020), 21–31
Citation in format AMSBIB
\Bibitem{TupBezMal20}
\by I.~I.~Tupitsyn, S.~V.~Bezborodov, A.~V.~Malyshev, D.~V.~Mironova, V.~M.~Shabaev
\paper Calculations of relativistic, correlation, nuclear and quantum-electrodynamic corrections to energy and ionization potential of the ground state of helium-like ions
\jour Optics and Spectroscopy
\yr 2020
\vol 128
\issue 1
\pages 24--33
\mathnet{http://mi.mathnet.ru/os491}
\crossref{https://doi.org/10.21883/OS.2020.01.48834.260-19}
\elib{https://elibrary.ru/item.asp?id=42744650}
\transl
\jour Optics and Spectroscopy
\yr 2020
\vol 128
\issue 1
\pages 21--31
\crossref{https://doi.org/10.1134/S0030400X20010245}
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    • This publication is cited in the following 3 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    		Optics and Spectroscopy Optics and Spectroscopy
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