The two-time Green's Function and screened Self-Energy for two-electron quasi-degenerate States
Atomic Physics
2007-05-23 v1
Abstract
Precise predictions of atomic energy levels require the use of QED, especially in highly-charged ions, where the inner electrons have relativistic velocities. We present an overview of the two-time Green's function method; this method allows one to calculate level shifts in two-electron highly-charged ions by including in principle all QED effects, for any set of states (degenerate, quasi-degenerate or isolated).
Keywords
Cite
@article{arxiv.physics/0012001,
title = {The two-time Green's Function and screened Self-Energy for two-electron quasi-degenerate States},
author = {E. -O. Le Bigot and P. Indelicato and V. M. Shabaev},
journal= {arXiv preprint arXiv:physics/0012001},
year = {2007}
}
Comments
7 pages, 3 figures, to appear in the Proceedings of the Hydrogen II conference held in Castiglione della Pescaia, Italy (S. G. Karshenboim et al., eds)