QED calculation of the n=1 and n=2 energy levels in He-like ions (26 pages)
- A. Artemyev, V. Shabaev, V. Yerokhin, G. Plunien, G.Soff
- Materials Science, Physics
- 15 January 2005
We perform ab initio QED calculations of energy levels for the $n=1$ and $n=2$ states of He-like ions with the nuclear charge in the range $Z=12\text{\char21{}}100$. The complete set of two-electron…
Hyperfine structure of hydrogen-like ions
- V. Shabaev
- Physics
- 28 December 1994
Simple formulae for calculation of the hyperfine structure of hydrogen-like ions taking into account the relativistic and nuclear effects are presented. These formulae are used for the calculation of…
Towards a test of QED in investigations of the hyperfine splitting in heavy ions.
- V. Shabaev, A. Artemyev, V. Yerokhin, O. Zherebtsov, G. Soff
- PhysicsPhysical Review Letters
- 30 April 2001
It is found that QED effects can be probed on the level of a few percent in a specific difference of the hyperfine splitting values in hydrogenlike and lithiumlike bismuth to provide a test of QED in the strongest electric field available at present for experimental study.
QEDMOD: Fortran program for calculating the model Lamb-shift operator
- V. Shabaev, I. Tupitsyn, V. Yerokhin
- PhysicsComputer Physics Communications
- 1 April 2015
Many-electron QED corrections to the g factor of lithiumlike ions.
- A. Volotka, D. Glazov, V. Shabaev, I. Tupitsyn, G. Plunien
- Physics, ChemistryPhysical Review Letters
- 26 June 2014
The screened self-energy corrections are calculated for the intermediate-Z region, and its accuracy for the high-Z regions is essentially improved in comparison with that of previous calculations, and the theoretical accuracy of the g factor of lithiumlike ions is significantly increased.
Nuclear deformation effect on the binding energies in heavy ions
- Y. Kozhedub, O. Andreev, T. Stohlker
- Physics
- 28 November 2007
Nuclear deformation effects on the binding energies in heavy ions are investigated. Approximate formulas for the nuclear-size correction and the isotope shift for deformed nuclei are derived.…
Schrodinger-like equation for the relativistic few-electron atom
- V. Shabaev
- Physics
- 28 December 1993
The equation for the determination of the energy levels and wavefunctions of quasidegenerate states of the relativistic few-electron atom in the form of the usual eigenvalue problem for an energy…
Two-loop self-energy correction in high-Z hydrogenlike ions.
- V. Yerokhin, P. Indelicato, V. Shabaev
- PhysicsPhysical Review Letters
- 28 February 2003
A complete evaluation of the two-loop self-energy diagrams to all orders in Zalpha is presented for the ground state of H-like ions with Z > or =40.
Generalizations of the virial relations for the Dirac equation in a central field and their applications to the Coulomb field
- V. Shabaev
- Physics
- 14 November 1991
The virial relations for the Dirac equation are generalized for the case of the non-diagonal radial matrix elements and for the case when the author integrates over an arbitrary finite interval of…
Model operator approach to the Lamb shift calculations in relativistic many-electron atoms
- V. Shabaev, I. Tupitsyn, V. Yerokhin
- Physics
- 27 May 2013
Amodeloperator approachtocalculations oftheQEDcorrectionstoenergylevelsinrelativisticmany-electron atomic systems is developed. The model Lamb shift operator is represented by a sum of local and…
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