Hyperfine-mediated effects in a Lu+ optical clock
Abstract
We consider hyperfine-mediated effects for clock transitions in 176Lu+. Mixing of fine structure levels due to the hyperfine interaction bring about modifications to Land\'e 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 1S0 and 3D1 hyperfine levels are carried out, which provide an experimental determination of the leading order correction terms.
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