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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Accesso online: | https://arxiv.org/abs/2411.05687 |
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| _version_ | 1866917831641137152 |
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| author | Gilles, Jan Fritzsche, Stephan Spieß, Lukas J. Schmidt, Piet O. Surzhykov, Andrey |
| author_facet | Gilles, Jan Fritzsche, Stephan Spieß, Lukas J. Schmidt, Piet O. Surzhykov, Andrey |
| contents | 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 Ca$^{14+}$, Ni$^{12+}$ and Xe$^{q+}$ ions. These ions attract particular interest for ongoing and future experiments in optical clocks and tests of fundamental physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_05687 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quadratic Zeeman and Electric Quadrupole Shifts in Highly Charged Ions Gilles, Jan Fritzsche, Stephan Spieß, Lukas J. Schmidt, Piet O. Surzhykov, Andrey Atomic Physics 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 Ca$^{14+}$, Ni$^{12+}$ and Xe$^{q+}$ ions. These ions attract particular interest for ongoing and future experiments in optical clocks and tests of fundamental physics. |
| title | Quadratic Zeeman and Electric Quadrupole Shifts in Highly Charged Ions |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2411.05687 |