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Blackbody radiation shift assessment for a lutetium ion clock (1712.00240v2)
Published 1 Dec 2017 in physics.atom-ph and quant-ph
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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