Calculated self-energy contributions for anvalence electron using the multiple-commutator method
- 1 April 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 59 (4) , 2707-2711
- https://doi.org/10.1103/physreva.59.2707
Abstract
The self-energy (SE) correction is evaluated for a single valence electron of heavy and superheavy atoms with n up to 8 and the nuclear charge Z up to 119. The recently developed approach based on the commutator expansion is employed. Various Dirac-Slater one-electron local potentials with extended nuclei are used. The Lamb shifts were calculated by adding the average values of the Uehling potential to the SE contributions. The results confirm the earlier estimates for the quantum electrodynamical effects on the valence energies of heavy and superheavy atoms.
Keywords
This publication has 21 references indexed in Scilit:
- Electron self-energy calculations for tightly bound electrons in atomsJournal of Physics B: Atomic, Molecular and Optical Physics, 1998
- A new approach to the direct renormalization of the bound electron self-energyPhysics Letters A, 1998
- Estimated valence-level Lamb shifts for group 1 and group 11 metal atomsPhysical Review A, 1998
- Multiple commutator expansion for the Lamb shift in a strong Coulomb fieldJournal of Physics B: Atomic, Molecular and Optical Physics, 1997
- Self-energy correction to one-electron energy levels in a strong Coulomb fieldPhysical Review A, 1992
- Self-energy of excited states in a strong Coulomb fieldPhysical Review A, 1992
- Vacuum polarization in a strong external fieldPhysical Review A, 1988
- Finite basis sets for the Dirac equation constructed fromBsplinesPhysical Review A, 1988
- Analytical Dirac-Hartree-Fock-Slater screening function for atoms (Z=1–92)Physical Review A, 1987
- The lamb shift in hydrogen-like atoms, 1 ⩽ Z ⩽ 110Atomic Data and Nuclear Data Tables, 1985