Quantum electrodynamics corrections to energies, transition amplitudes, and parity nonconservation in Rb, Cs, Ba+, Tl, Fr, and Ra+

Abstract

We use previously developed radiative potential method to calculate quantum electrodynamic (QED) corrections to energy levels and electric dipole transition amplitudes for atoms which are used for the study of the parity non-conservation (PNC) in atoms. The QED shift in energies and dipole amplitudes leads to noticeable change in the PNC amplitudes. This study compliments the previously considered QED corrections to the weak matrix elements. We demonstrate that the QED corrections due to the change in energies and dipole matrix elements are comparable in value to those due to change in weak matrix elements.

Double-core-polarization contribution to atomic parity-nonconservation and electric-dipole-moment calculations

“…This is an important contribution that is of the same order or even larger than the Breit [33], neutron-skin [34], and QED [35] corrections. This term has the potential to restore the agreement between differing calculations.…”

Electronic structure theory of the superheavy elements

“…A further refinement of both computational approaches requires the inclusion of QED and nuclear corrections, currently achieved by low-order perturbation theory based on model or effective potentials. Recent methodological developments and calculations of leading QED effects in heavy atomic systems may be found in [31][32][33][34][35][36][37][38].…”

QED radiative corrections and many-body effects in atoms: vacuum polarization and binding energy shifts in alkali metals

“…There are a number of recent works where QED radiative corrections have been included into the many-body problem using one or other of these radiative potentials (e.g., [18][19][20][21]). However, there has as yet been no indepth study of the interplay between radiative corrections and many-body effects or of the breakdown of different terms.…”