High-Resolution Spectroscopy of $^{173}$Yb$^{+}$ Ions

Fuente: arXiv
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Autores principales: Jiang, J., Viatkina, A. V., JK, Saaswath, Steinel, M., Filzinger, M., Peik, E., Porsev, S. G., Safronova, M. S., Surzyhkov, A., Huntemann, N.
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Publicado: 2026
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author Jiang, J.
Viatkina, A. V.
JK, Saaswath
Steinel, M.
Filzinger, M.
Peik, E.
Porsev, S. G.
Safronova, M. S.
Surzyhkov, A.
Huntemann, N.
author_facet Jiang, J.
Viatkina, A. V.
JK, Saaswath
Steinel, M.
Filzinger, M.
Peik, E.
Porsev, S. G.
Safronova, M. S.
Surzyhkov, A.
Huntemann, N.
contents Compared to other stable isotopes of $\rm{Yb}^+$, $^{173}\rm{Yb}^+$ has a richer hyperfine structure, which leads to more favorable clock transitions, spectroscopic techniques for probing new physics, and more sophisticated quantum computing architectures. However, to date, its electronic spectrum remains poorly characterized. Here, we report on efficient laser cooling, state preparation, and detection of a single trapped $^{173}\rm{Yb}^+$ ion. The previously unobserved $^2\!S_{1/2} \rightarrow {}^2\!D_{3/2}$ electric quadrupole transition at 436 nm is coherently excited, and the isotope shift between $^{171}\rm{Yb}^+$ and $^{173}\rm{Yb}^+$ on this transition is determined with an uncertainty of 1.4 Hz. Using microwave spectroscopy, we resolve the hyperfine structure (HFS) of the ${}^2\!D_{3/2}$ state with a relative uncertainty below $10^{-8}$. From the HFS measurement data, we infer for ${}^{173}$Yb a nuclear magnetic octupole moment $Ω= -0.062(8)\,({\rm b} \times μ_N)$ with uncertainty reduced by more than 2 orders of magnitude compared to previous studies. The data also allow us to determine hyperfine anomalies for the ${}^2\!S_{1/2}$ and ${}^2\!D_{3/2}$ states.
format Preprint
id arxiv_https___arxiv_org_abs_2601_09585
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle High-Resolution Spectroscopy of $^{173}$Yb$^{+}$ Ions
Jiang, J.
Viatkina, A. V.
JK, Saaswath
Steinel, M.
Filzinger, M.
Peik, E.
Porsev, S. G.
Safronova, M. S.
Surzyhkov, A.
Huntemann, N.
Atomic Physics
High Energy Physics - Experiment
Quantum Physics
Compared to other stable isotopes of $\rm{Yb}^+$, $^{173}\rm{Yb}^+$ has a richer hyperfine structure, which leads to more favorable clock transitions, spectroscopic techniques for probing new physics, and more sophisticated quantum computing architectures. However, to date, its electronic spectrum remains poorly characterized. Here, we report on efficient laser cooling, state preparation, and detection of a single trapped $^{173}\rm{Yb}^+$ ion. The previously unobserved $^2\!S_{1/2} \rightarrow {}^2\!D_{3/2}$ electric quadrupole transition at 436 nm is coherently excited, and the isotope shift between $^{171}\rm{Yb}^+$ and $^{173}\rm{Yb}^+$ on this transition is determined with an uncertainty of 1.4 Hz. Using microwave spectroscopy, we resolve the hyperfine structure (HFS) of the ${}^2\!D_{3/2}$ state with a relative uncertainty below $10^{-8}$. From the HFS measurement data, we infer for ${}^{173}$Yb a nuclear magnetic octupole moment $Ω= -0.062(8)\,({\rm b} \times μ_N)$ with uncertainty reduced by more than 2 orders of magnitude compared to previous studies. The data also allow us to determine hyperfine anomalies for the ${}^2\!S_{1/2}$ and ${}^2\!D_{3/2}$ states.
title High-Resolution Spectroscopy of $^{173}$Yb$^{+}$ Ions
topic Atomic Physics
High Energy Physics - Experiment
Quantum Physics
url https://arxiv.org/abs/2601.09585