Quadratic Zeeman and electric quadrupole shifts in highly charged ions

authored by: 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.
Organisation(s): Institute of Quantum Optics
External Organisation(s): Physikalisch-Technische Bundesanstalt PTB
Technische Universität Braunschweig
Technical University of Munich (TUM)
Ludwig-Maximilians-Universität München (LMU)
Helmholtz Institute Jena
GSI Helmholtz Centre for Heavy Ion Research
Friedrich Schiller University Jena
Type: Article
Journal: Physical Review A
Volume: 110
No. of pages: 12
ISSN: 2469-9926
Publication date: 22.11.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Atomic and Molecular Physics, and Optics
Electronic version(s): https://doi.org/10.48550/arXiv.2411.05687 (Access: Open)
https://doi.org/10.1103/PhysRevA.110.052812 (Access: Closed)

BibTeX

@article{93b0a32c9b43495a863c5997a3965c3d,
title = "Quadratic Zeeman and electric quadrupole shifts in highly charged ions",
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.",
author = "Jan Gilles and Stephan Fritzsche and Spie{\ss}, {Lukas J.} and Schmidt, {Piet O.} and Andrey Surzhykov",
note = "Publisher Copyright: {\textcopyright} 2024 American Physical Society. ",
year = "2024",
month = nov,
day = "22",
doi = "10.48550/arXiv.2411.05687",
language = "English",
volume = "110",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "5",
}