Determination of the ground-state hyperfine splitting of trapped 171Yb+ ions
We present the determination of the ground-state hyperfine splitting (νHFS) in laser-cooled 171Yb+ ions using our microwave quantum frequency standard (QFS). Employing Ramsey spectroscopy in a closed-loop measurement configuration, we have achieved a νHFS value of 12 642 812 118 469.0(8) mHz with a fractional uncertainty of 6.6×10−14. This result aligns with previously reported values and represents the highest accuracy reported to date for such measurements conducted in a single-shot closed-loop configuration, without averaging over multiple dates. The development of this accurate 171Yb+ microwave QFS holds promise as a transportable time-frequency reference for satellite navigation systems.
Authors
- Yanmei Yu (ORCID: https://orcid.org/0000-0002-2850-7482)
- N. C. Xin (ORCID: https://orcid.org/0000-0003-1383-738X)
- L. J. Wang
- J. Z. Han (ORCID: https://orcid.org/0000-0002-6421-1523)
- J. W. Zhang
- Qian Liu (ORCID: https://orcid.org/0000-0001-8525-7961)
- Jiguang Li (ORCID: https://orcid.org/0000-0002-9592-4964)
Institutions
- China Mobile (China) (CN)
- Chinese Academy of Sciences (CN)
- Institute of Applied Physics and Computational Mathematics (CN)
- Institute of Physics (CN)
- University of Chinese Academy of Sciences (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2024-08-19
- DOI
- https://doi.org/10.1063/5.0226908
- Citations
- 3
- Primary Topic
- Atomic and Subatomic Physics Research
- Type
- article
- Field-Weighted Citation Impact
- 1.01
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China