Details
| Original language | English |
|---|---|
| Article number | 052812 |
| Number of pages | 12 |
| Journal | Physical Review A |
| Volume | 110 |
| Issue number | 5 |
| Publication status | Published - 22 Nov 2024 |
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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
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In: Physical Review A, Vol. 110, No. 5, 052812, 22.11.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Quadratic Zeeman and electric quadrupole shifts in highly charged ions
AU - Gilles, Jan
AU - Fritzsche, Stephan
AU - Spieß, Lukas J.
AU - Schmidt, Piet O.
AU - Surzhykov, Andrey
N1 - Publisher Copyright: © 2024 American Physical Society.
PY - 2024/11/22
Y1 - 2024/11/22
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85210131076&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2411.05687
DO - 10.48550/arXiv.2411.05687
M3 - Article
AN - SCOPUS:85210131076
VL - 110
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 5
M1 - 052812
ER -