QED corrections to singlet levels of the helium atom: A complete set of effective operators to
- 9 November 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 64 (6), 062104
- https://doi.org/10.1103/physreva.64.062104
Abstract
Using singlet S states of the helium atom as an example, precise calculation of energy levels in few-electron atoms is described. In particular, a complete set of effective operators is derived, which generates relativistic and radiative corrections to the Schrödinger energy. Average values of these operators can be calculated using a variational Schrödinger wave function.
Keywords
This publication has 27 references indexed in Scilit:
- PositroniumS-state spectrum: Analytic results atPhysical Review A, 1999
- Positronium Hyperfine Splitting: Analytical Value atPhysical Review Letters, 1999
- Matching at one loop for the four-quark operators in NRQCDPhysical Review D, 1998
- Quantum electrodynamics effects on singlet S-states of helium of orderJournal of Physics B: Atomic, Molecular and Optical Physics, 1998
- Effective field theory for ultrasoft momenta in NRQCD and NRQEDNuclear Physics B - Proceedings Supplements, 1998
- Measurement of the He Ground State Lamb Shift via the Two-PhotonTransitionPhysical Review Letters, 1998
- Lamb shift measurement in theS ground state of heliumPhysical Review A, 1997
- Effective lagrangians for bound state problems in QED, QCD, and other field theoriesPhysics Letters B, 1986
- Quantum Mechanics of One- and Two-Electron AtomsPublished by Springer Science and Business Media LLC ,1977
- The Electromagnetic Shift of Energy LevelsPhysical Review B, 1947