Quadratic Zeeman and electric quadrupole shifts in highly charged ions

verfasst von

Jan Gilles, Stephan Fritzsche, Lukas J. Spieß, Piet O. Schmidt, Andrey Surzhykov

Abstract

Recent advances in high-precision spectroscopy of highly charged ions necessitate an understanding of energy shifts of ionic levels caused by external electric and magnetic fields. Beyond the well-known Stark and linear Zeeman shifts, trapped ions may also exhibit quadratic Zeeman and electric quadrupole shifts. In this contribution, we present a systematic approach for the theoretical analysis of these shifts for arbitrary many-electron ions. Based on the derived expressions and making use of the multiconfigurational Dirac-Fock approach, we performed calculations of quadratic Zeeman shift coefficients and quadrupole moments for various ionic states in Ca14+, Ni12+, and Xeq+ ions. These ions attract particular interest for ongoing and future experiments in optical clocks and tests of fundamental physics.

Organisationseinheit(en)

Institut für Quantenoptik

Externe Organisation(en)

Physikalisch-Technische Bundesanstalt (PTB)
Technische Universität Braunschweig
Technische Universität München (TUM)
Ludwig-Maximilians-Universität München (LMU)
Helmholtz-Institut Jena
GSI Helmholtzzentrum für Schwerionenforschung GmbH
Friedrich-Schiller-Universität Jena

Typ

Artikel

Journal

Physical Review A

Band

110

Anzahl der Seiten

12

ISSN

2469-9926

Publikationsdatum

22.11.2024

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Atom- und Molekularphysik sowie Optik

Elektronische Version(en)

https://doi.org/10.48550/arXiv.2411.05687 (Zugang: Offen)
https://doi.org/10.1103/PhysRevA.110.052812 (Zugang: Geschlossen)