Theoretical study on the transition wavelengths and probabilities, Landé g J factors, and sensitivity to fundamental constants of Ge-like highly charged ions.
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| Title: | Theoretical study on the transition wavelengths and probabilities, Landé g |
|---|---|
| Authors: | Wu, Cunqiang1 (AUTHOR), Ding, Xiaobin1,2,3 (AUTHOR) dingxb@nwnu.edu.cn, Dong, Chenzhong1,2,3 (AUTHOR) |
| Source: | New Journal of Physics. Jun2025, Vol. 27 Issue 6, p1-13. 13p. |
| Subjects: | Fine-structure constant, Atomic clocks, Energy levels (Quantum mechanics), Quantum electrodynamics, Ions, Hyperfine structure, Electron configuration |
| Abstract: | The fully relativistic multi-configuration Dirac–Hartree–Fock method is employed to investigate the atomic properties of the ground configuration 4 p 2 of Ge-like highly charged ions (HCIs). These properties include energy levels, magnetic dipole ( M 1 ) and electric quadrupole ( E 2 ) transition wavelengths and probabilities, Landé g J factors, hyperfine structure constants, and other physical quantities relevant to clock transitions. The influence of electron correlation effects from different electronic shells on atomic properties is examined in detail using the active space method. The finite nuclear size effect, Breit interaction and quantum electrodynamics effect have also been appropriately considered. The computed results demonstrate excellent agreement with available experimental and theoretical data. Notably, our results reveal that the 3 d electron shells play a critical role in determine the energy, wave functions, and atomic properties of ions with low ionization degree. This implies that accounting for the considerable contribution of inner-shell electron in the calculations of such ions will improve the accuracy of theoretical modeling. Through an analysis on the properties of relevant ions, we find that the M 1 and E 2 transitions of selected HCIs exhibit suitable clock transition wavelengths, narrow natural linewidths, high quality factors, and high sensitivity to variations in the fine structure constant α. These ions hold significant potential for applications in the development of optical clocks and the investigation of potential variation of fine structure constant. [ABSTRACT FROM AUTHOR] |
| Copyright of New Journal of Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 186135652 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Theoretical study on the transition wavelengths and probabilities, Landé g <subscript> J </subscript> factors, and sensitivity to fundamental constants of Ge-like highly charged ions. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wu%2C+Cunqiang%22">Wu, Cunqiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ding%2C+Xiaobin%22">Ding, Xiaobin</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> dingxb@nwnu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Dong%2C+Chenzhong%22">Dong, Chenzhong</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22New+Journal+of+Physics%22">New Journal of Physics</searchLink>. Jun2025, Vol. 27 Issue 6, p1-13. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Fine-structure+constant%22">Fine-structure constant</searchLink><br /><searchLink fieldCode="DE" term="%22Atomic+clocks%22">Atomic clocks</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+levels+%28Quantum+mechanics%29%22">Energy levels (Quantum mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Quantum+electrodynamics%22">Quantum electrodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Ions%22">Ions</searchLink><br /><searchLink fieldCode="DE" term="%22Hyperfine+structure%22">Hyperfine structure</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+configuration%22">Electron configuration</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The fully relativistic multi-configuration Dirac–Hartree–Fock method is employed to investigate the atomic properties of the ground configuration 4 p 2 of Ge-like highly charged ions (HCIs). These properties include energy levels, magnetic dipole ( M 1 ) and electric quadrupole ( E 2 ) transition wavelengths and probabilities, Landé g J factors, hyperfine structure constants, and other physical quantities relevant to clock transitions. The influence of electron correlation effects from different electronic shells on atomic properties is examined in detail using the active space method. The finite nuclear size effect, Breit interaction and quantum electrodynamics effect have also been appropriately considered. The computed results demonstrate excellent agreement with available experimental and theoretical data. Notably, our results reveal that the 3 d electron shells play a critical role in determine the energy, wave functions, and atomic properties of ions with low ionization degree. This implies that accounting for the considerable contribution of inner-shell electron in the calculations of such ions will improve the accuracy of theoretical modeling. Through an analysis on the properties of relevant ions, we find that the M 1 and E 2 transitions of selected HCIs exhibit suitable clock transition wavelengths, narrow natural linewidths, high quality factors, and high sensitivity to variations in the fine structure constant α. These ions hold significant potential for applications in the development of optical clocks and the investigation of potential variation of fine structure constant. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of New Journal of Physics is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1088/1367-2630/ade46e Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 1 Subjects: – SubjectFull: Fine-structure constant Type: general – SubjectFull: Atomic clocks Type: general – SubjectFull: Energy levels (Quantum mechanics) Type: general – SubjectFull: Quantum electrodynamics Type: general – SubjectFull: Ions Type: general – SubjectFull: Hyperfine structure Type: general – SubjectFull: Electron configuration Type: general Titles: – TitleFull: Theoretical study on the transition wavelengths and probabilities, Landé g J factors, and sensitivity to fundamental constants of Ge-like highly charged ions. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wu, Cunqiang – PersonEntity: Name: NameFull: Ding, Xiaobin – PersonEntity: Name: NameFull: Dong, Chenzhong IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 13672630 Numbering: – Type: volume Value: 27 – Type: issue Value: 6 Titles: – TitleFull: New Journal of Physics Type: main |
| ResultId | 1 |
