Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled $^{229}$Th$^{3+}$ ions
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arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866913770534600704 |
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| author | Zitzer, G. Tiedau, J. Düllmann, Ch. E. Okhapkin, M. V. Peik, E. |
| author_facet | Zitzer, G. Tiedau, J. Düllmann, Ch. E. Okhapkin, M. V. Peik, E. |
| contents | The hyperfine structure of $^{229}$Th$^{3+}$ ions in the nuclear ground state is investigated via laser spectroscopy of trapped Th$^{3+}$ ions that are sympathetically cooled by laser-cooled $^{88}$Sr$^+$ ions in a linear Paul trap. The isotope shift to $^{230}$Th$^{3+}$ and the hyperfine constants for the magnetic dipole (A) and electric quadrupole (B) interactions for the 5F$_{5/2}$ and 6D$_{5/2}$ electronic states of $^{229}$Th$^{3+}$ are determined. These measurements provide nuclear moments of $^{229}$Th with reduced uncertainty and serve as a preparation for improved hyperfine spectroscopy of the 8.4 eV nuclear isomeric state in $^{229}$Th$^{3+}$ ions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_00974 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled $^{229}$Th$^{3+}$ ions Zitzer, G. Tiedau, J. Düllmann, Ch. E. Okhapkin, M. V. Peik, E. Atomic Physics The hyperfine structure of $^{229}$Th$^{3+}$ ions in the nuclear ground state is investigated via laser spectroscopy of trapped Th$^{3+}$ ions that are sympathetically cooled by laser-cooled $^{88}$Sr$^+$ ions in a linear Paul trap. The isotope shift to $^{230}$Th$^{3+}$ and the hyperfine constants for the magnetic dipole (A) and electric quadrupole (B) interactions for the 5F$_{5/2}$ and 6D$_{5/2}$ electronic states of $^{229}$Th$^{3+}$ are determined. These measurements provide nuclear moments of $^{229}$Th with reduced uncertainty and serve as a preparation for improved hyperfine spectroscopy of the 8.4 eV nuclear isomeric state in $^{229}$Th$^{3+}$ ions. |
| title | Laser spectroscopy on the hyperfine structure and isotope shift of sympathetically cooled $^{229}$Th$^{3+}$ ions |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2504.00974 |