Calculation of higher-order corrections to the light shift of the 5s2 S01−5s5p P0o3 clock transition in Cd
Calculation of higher-order corrections to the light shift of the 5s2 S01−5s5p P0o3 clock transition in Cd
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DOI：
10.1103/physreva.102.012811
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发表时间：
2020-03
影响因子：
2.9
通讯作者：
S. Porsev;M. Safronova
中科院分区：
文献类型：
--
作者：
S. Porsev;M. Safronova
在最近的工作中 [A.~Yamaguchi 等人。阿尔，物理学。莱特牧师。 {\bf 123}, 113201 (2019)] Cd 已被确定为晶格时钟的优秀候选者。在这里，我们进行了进一步时钟开发所需的计算，并对 $5s^2\, ^1\!S_0$--$5s5p\, ^3\!P_0^o$ 时钟转换的光移进行了高阶校正评估。我们计算了神奇波长下 $5s^2\, ^1\!S_0$ 和 $5s5p\, ^3\!P_0^o$ 时钟状态的磁偶极子和电四极子极化率以及线性和圆超极化率，并估计了这些量的不确定性。我们还评估了二阶塞曼时钟跃迁频率偏移。
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.