Research output: Contribution to journal › Article › peer-review
One-electron energy spectra of heavy highly charged quasimolecules : Finite-basis-set approach. / Kotov, Artem A.; Glazov, Dmitry A.; Shabaev, Vladimir M.; Plunien, Günter.
In: Atoms, Vol. 9, No. 3, 44, 09.2021.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - One-electron energy spectra of heavy highly charged quasimolecules
T2 - Finite-basis-set approach
AU - Kotov, Artem A.
AU - Glazov, Dmitry A.
AU - Shabaev, Vladimir M.
AU - Plunien, Günter
N1 - Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/9
Y1 - 2021/9
N2 - The generalized dual-kinetic-balance approach for axially symmetric systems is employed to solve the two-center Dirac problem. The spectra of one-electron homonuclear quasimolecules are calculated and compared with the previous calculations. The analysis of the monopole approximation with two different choices of the origin is performed. Special attention is paid to the lead and xenon dimers, Pb82+–Pb82+–e− and Xe54+–Xe54+–e−, where the energies of the ground and several excited σ-states are presented in the wide range of internuclear distances. The developed method provides the quasicomplete finite basis set and allows for the construction of perturbation theory, including within the bound-state QED.
AB - The generalized dual-kinetic-balance approach for axially symmetric systems is employed to solve the two-center Dirac problem. The spectra of one-electron homonuclear quasimolecules are calculated and compared with the previous calculations. The analysis of the monopole approximation with two different choices of the origin is performed. Special attention is paid to the lead and xenon dimers, Pb82+–Pb82+–e− and Xe54+–Xe54+–e−, where the energies of the ground and several excited σ-states are presented in the wide range of internuclear distances. The developed method provides the quasicomplete finite basis set and allows for the construction of perturbation theory, including within the bound-state QED.
KW - Heavy-ion collisions
KW - Quasimolecules
KW - Two-center Dirac equation
KW - RELATIVISTIC CALCULATIONS
KW - STATES
KW - DIRAC-EQUATION
KW - two-center Dirac equation
KW - quasimolecules
KW - COLLISIONS
KW - CRITICAL DISTANCE
KW - SPECTROSCOPY
KW - SPLINES
KW - heavy-ion collisions
KW - IONIZATION
UR - http://www.scopus.com/inward/record.url?scp=85111013601&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/46ff82db-fd6a-3ab6-8b6b-bc472aab0558/
U2 - 10.3390/atoms9030044
DO - 10.3390/atoms9030044
M3 - Article
AN - SCOPUS:85111013601
VL - 9
JO - Atoms
JF - Atoms
SN - 2218-2004
IS - 3
M1 - 44
ER -
ID: 84479132