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arXiv · 2003.13855

Calculation of higher-order corrections to the light shift of the $5s^2\, ^1\!S_0$--$5s5p\,^3\!P_0^o$ clock transition in Cd

S. G. Porsev·M. S. Safronova
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Abstract

In the recent work [A.~Yamaguchi et. al, Phys. Rev. Lett. {\bf 123}, 113201 (2019)] Cd has been identified as an excellent candidate for a lattice clock. Here, we carried out computations needed for further clock development and made an assessment of the higher-order corrections to the light shift of the $5s^2\, ^1\!S_0$--$5s5p\, ^3\!P_0^o$ clock transition. We carried out calculations of the magnetic dipole and electric quadrupole polarizabilities and linear and circular hyperpolarizabilities of the $5s^2\, ^1\!S_0$ and $5s5p\, ^3\!P_0^o$ clock states at the magic wavelength and estimated uncertainties of these quantities. We also evaluated the second-order Zeeman clock transition frequency shift.

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S. G. Porsev, M. S. Safronova. 2020-03-30. Calculation of higher-order corrections to the light shift of the $5s^2\, ^1\!S_0$--$5s5p\,^3\!P_0^o$ clock transition in Cd. https://doi.org/10.1103/physreva.102.012811

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