Observation and measurement of the S 0 1 − P 0 3 transition in an optical lattice clock using the Hg 198…

Abstract

We report the observation of the magnetic-field-induced ( 5 d 10 6 s 2 ) S 0 1 − ( 5 d 10 6 s 6 p ) P 0 3 transition in a bosonic isotope of mercury, Hg 198 , realized in an optical lattice clock. We characterize this Hg 198 clock transition at 265.6 nm, determining key features such as the quadratic Zeeman shift, the probe light shift, and the magic frequency. We also report a comparison between the Hg 198 optical lattice clock and Sr 87 . In this comparison, the Hg 198 clock has a relative frequency stability of 6 × 10 − 16 / τ / s and a total relative systematic uncertainty of 6.9 × 10 − 16 . This comparison yields the first direct determination of the Hg 198 / Sr 87 optical frequency ratio: Hg 198 / Sr 87 = 2.629 315 734 684 118 1 , with the same relative uncertainty.

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BibTeX

@article{zyskind2026observation,
  title = {{Observation and measurement of the S 0 1 − P 0 3 transition in an optical lattice clock using the Hg 198 bosonic isotope}},
  author = {Clara Zyskind and Thomas Lauprêtre and Haosen Shang and Benjamin Pointard and Rodolphe Le Targat and Jérôme Lodewyck and Sébastien Bize},
  journal = {Physical Review Research},
  year = {2026},
  month = sep,
  doi = {10.1103/q28c-kb61},
  eprint = {2512.04920},
  archivePrefix = {arXiv},
  url = {https://hal.science/hal-05768823v1},
  note = {CC BY},
}

RIS

TY  - JOUR
TI  - Observation and measurement of the S 0 1 − P 0 3 transition in an optical lattice clock using the Hg 198 bosonic isotope
AU  - Clara Zyskind
AU  - Thomas Lauprêtre
AU  - Haosen Shang
AU  - Benjamin Pointard
AU  - Rodolphe Le Targat
AU  - Jérôme Lodewyck
AU  - Sébastien Bize
PY  - 2026
DA  - 2026/09/28
JO  - Physical Review Research
DO  - 10.1103/q28c-kb61
UR  - https://hal.science/hal-05768823v1
AB  - We report the observation of the magnetic-field-induced ( 5 d 10 6 s 2 ) S 0 1 − ( 5 d 10 6 s 6 p ) P 0 3 transition in a bosonic isotope of mercury, Hg 198 , realized in an optical lattice clock. We characterize this Hg 198 clock transition at 265.6 nm, determining key features such as the quadratic Zeeman shift, the probe light shift, and the magic frequency. We also report a comparison between the Hg 198 optical lattice clock and Sr 87 . In this comparison, the Hg 198 clock has a relative frequency stability of 6 × 10 − 16 / τ / s and a total relative systematic uncertainty of 6.9 × 10 − 16 . This comparison yields the first direct determination of the Hg 198 / Sr 87 optical frequency ratio: Hg 198 / Sr 87 = 2.629 315 734 684 118 1 , with the same relative uncertainty.
SN  - 2643-1564
SN  - 2643-1564
ER  -

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