Non-perturbative calculation of the two-loop Lamb shift in Li-like ions
Atomic Physics
2009-11-13 v1
Abstract
A calculation valid to all orders in the nuclear-strength parameter is presented for the two-loop Lamb shift, notably for the two-loop self-energy correction, to the 2p-2s transition energies in heavy Li-like ions. The calculation removes the largest theoretical uncertainty for these transitions and yields the first experimental identification of two-loop QED effects in the region of the strong binding field.
Keywords
Cite
@article{arxiv.physics/0611264,
title = {Non-perturbative calculation of the two-loop Lamb shift in Li-like ions},
author = {V. A. Yerokhin and P. Indelicato and V. M. Shabaev},
journal= {arXiv preprint arXiv:physics/0611264},
year = {2009}
}