DOAJ Open Access 2022

Finite-Basis-Set Approach to the Two-Center Heteronuclear Dirac Problem

Artem A. Kotov Dmitry A. Glazov Aleksei V. Malyshev Vladimir M. Shabaev Günter Plunien

Abstrak

The rigorous two-center approach based on the dual-kinetically balanced finite-basis-set expansion is applied to one-electron, heteronuclear diatomic Bi-Au, U-Pb, and Cf-U quasimolecules. The obtained <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>1</mn><mi>σ</mi></mrow></semantics></math></inline-formula> ground-state energies are compared with previous calculations, when possible. Upon analysis of three different placements of the coordinate system’s origin in the monopole approximation of the two-center potential: (1) in the middle, between the nuclei, (2) in the center of the heavy nucleus, and (3) in the center of the light nucleus, a substantial difference between the results is found. The leading contributions of one-electron quantum electrodynamics (self-energy and vacuum polarization) are evaluated within the monopole approximation as well.

Topik & Kata Kunci

Nuclear and particle physics. Atomic energy. Radioactivity

Penulis (5)

Artem A. Kotov

Dmitry A. Glazov

Aleksei V. Malyshev

Vladimir M. Shabaev

Günter Plunien

Format Sitasi

APA MLA BibTeX

Kotov, A.A., Glazov, D.A., Malyshev, A.V., Shabaev, V.M., Plunien, G. (2022). Finite-Basis-Set Approach to the Two-Center Heteronuclear Dirac Problem. https://doi.org/10.3390/atoms10040145

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Informasi Jurnal

Tahun Terbit: 2022
Sumber Database: DOAJ
DOI: 10.3390/atoms10040145
Akses: Open Access ✓