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Evaluation of Two-Photon Exchange Graphs for Excited States of Highly Charged Heliumlike Ions

Published

Author(s)

Peter J. Mohr, J Sapirstein

Abstract

Energy shifts arising from two photo exchange graphs are calculated for N=2 triplet states of heliumlike ions and tabulated for the range of nuclear charges Z = 30-92. The results are compared with second-order many-body perturbation theory (MBPT), and the differences identified as QED effects associated with retardation and negative energy states not included in MBPT.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)
Volume
62
Issue
No. 5

Keywords

helium-like atom, QED, two photon correction

Citation

Mohr, P. and Sapirstein, J. (2000), Evaluation of Two-Photon Exchange Graphs for Excited States of Highly Charged Heliumlike Ions, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed July 13, 2024)

Issues

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Created November 1, 2000, Updated February 17, 2017