Abstract:
High-precision calculations of the ground-state binding energy of berylliumlike molybdenum (Z = 42) are performed. The applied approach merges rigorous quantum-electrodynamics (QED) treatment up to the second order of perturbation theory in the framework of the Furry picture and the third- and higher-order correlation effects evaluated within the Breit approximation. The mixing of the close configurations of the same symmetry due to the electron–electron interaction is considered by employing the QED perturbation theory for quasi-degenerate levels. The most accurate up-to-date theoretical predictions for the binding energy are obtained.
Keywords:
relativistic atomic theory, quantum electrodynamics, correlation effects, highly charged ions, perturbation theory for quasi-degenerate levels.
This study was supported by the grant of the President of the Russian Federation (Grant No. MK-1459.2020.2), and by RFBR and ROSATOM according to the research project No. 20-21-00098. The work was also supported by RFBR (Grant No. 19-02-00974). A. V. Malyshev, M. Y. Kaygorodov, V.M. Shabaev, D.A. Glazov acknowledge the support from the Foundation for the Advancement of Theoretical Physics and Mathematics “BASIS”.
Citation:
A. V. Malyshev, Y. S. Kozhedub, I. S. Anisimova, D. A. Glazov, M. Yu. Kaygorodov, I. I. Tupitsyn, V. M. Shabaev, “Ground-state binding energy of berylliumlike molybdenum: correlation and quantum-electrodynamics effects”, Optics and Spectroscopy, 129:5 (2021), 559–568; Optics and Spectroscopy, 129:6 (2021), 652–661
\Bibitem{MalKozAni21}
\by A.~V.~Malyshev, Y.~S.~Kozhedub, I.~S.~Anisimova, D.~A.~Glazov, M.~Yu.~Kaygorodov, I.~I.~Tupitsyn, V.~M.~Shabaev
\paper Ground-state binding energy of berylliumlike molybdenum: correlation and quantum-electrodynamics effects
\jour Optics and Spectroscopy
\yr 2021
\vol 129
\issue 5
\pages 559--568
\mathnet{http://mi.mathnet.ru/os132}
\crossref{https://doi.org/10.21883/OS.2021.05.50882.1814-21}
\elib{https://elibrary.ru/item.asp?id=46495616}
\transl
\jour Optics and Spectroscopy
\yr 2021
\vol 129
\issue 6
\pages 652--661
\crossref{https://doi.org/10.1134/S0030400X2105009X}
Linking options:
https://www.mathnet.ru/eng/os132
https://www.mathnet.ru/eng/os/v129/i5/p559
This publication is cited in the following 3 articles:
A. V. Malyshev, Y. S. Kozhedub, V. M. Shabaev, I. I. Tupitsyn, “QED calculations of intra-
L
-shell singly excited states in Be-like ions”, Phys. Rev. A, 110:6 (2024)
A. V. Malyshev, Y. S. Kozhedub, V. M. Shabaev, “Ab initio
calculations of the
2p3/2→2s
transition in He-, Li-, and Be-like uranium”, Phys. Rev. A, 107:4 (2023)
Vladimir A. Yerokhin, Vojtěch Patkóš, Krzysztof Pachucki, “QED calculations of energy levels of heliumlike ions with
5≤Z≤30”, Phys. Rev. A, 106:2 (2022)
Citation in format AMSBIB
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