Mainz 2017 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 20: Poster Session I
A 20.42: Poster
Dienstag, 7. März 2017, 17:00–19:00, P OG1
The g-factor of highly charged ions — •Halil Cakir1, Bastian Sikora1, Natalia S. Oreshkina1, Nikolay A. Belov1, Vladimir A. Yerokhin2, Christoph H. Keitel1, and Zoltán Harman1 — 1Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany — 2Center for Advanced Studies, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, Russia
Recent high-precision measurements on the g-factor of highly charged ions with Penning traps, together with a correspondingly accurate theoretical description, allow detailed tests of QED in strong fields. Furthermore, fundamental constants such as the electron mass and the fine-structure constant α can be extracted in such studies.
Due to their comparably simple structure, one-electron ions are most suited for testing strong-field QED effects (see e.g. [1]). A determination of α however also necessitates an accurate description for three-electron ions, as discussed recently in [2], because employing a specific weighted difference of the g-factors of both ions, the detrimental nuclear structural effects can be effectively suppressed. Therefore, we present recent theoretical calculations for one- and three-electron ions. – [1] N. A. Belov et al., submitted; arXiv:1610.01340 (2016); [2] V. A. Yerokhin et al., Phys. Rev. Lett. 116, 100801 (2016).