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arXiv · 2009.02889

Hyperfine-mediated effects in a Lu$^+$ optical clock

Zhiqiang Zhang·K. J. Arnold·R. Kaewuam·M. S. Safronova·M. D. Barrett
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Abstract

We consider hyperfine-mediated effects for clock transitions in $^{176}$Lu$^+$. Mixing of fine structure levels due to the hyperfine interaction bring about modifications to Landé $g$-factors and the quadrupole moment for a given state. Explicit expressions are derived for both $g$-factor and quadrupole corrections, for which leading order terms arise from the nuclear magnetic dipole coupling. High accuracy measurements of the $g$-factors for the $^1S_0$ and $^3D_1$ hyperfine levels are carried out, which provide an experimental determination of the leading order correction terms.

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Zhiqiang Zhang, K. J. Arnold, R. Kaewuam, M. S. Safronova, M. D. Barrett. 2020-09-07. Hyperfine-mediated effects in a Lu$^+$ optical clock. https://arxiv.org/abs/2009.02889

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