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arXiv · 1712.00240

Blackbody radiation shift assessment for a lutetium ion clock

Kyle J. Arnold·Rattakorn Kaewuam·Arpan Roy·Ting Rei Tan·Murray D. Barrett
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Abstract

We measure the dynamic differential scalar polarizabilities at 10.6 $\mu$m for two candidate clock transitions in $^{176}\mathrm{Lu}^+$. The fractional black body radiation (BBR) shifts at 300 K for the $^1S_0 \leftrightarrow {^3D_1}$ and $^1S_0 \leftrightarrow {^3D_2}$ transitions are evaluated to be $-1.36\,(9) \times 10^{-18}$ and $2.70 \,(21) \times10^{-17}$, respectively. The former is the lowest of any established optical atomic clock.

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Kyle J. Arnold, Rattakorn Kaewuam, Arpan Roy, Ting Rei Tan, Murray D. Barrett. 2017-12-01. Blackbody radiation shift assessment for a lutetium ion clock. https://doi.org/10.1038/s41467-018-04079-x

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