Finite-field calculation of static polarizabilities and hyperpolarizabilities of In + and Sr
Finite-field calculation of static polarizabilities and hyperpolarizabilities of In + and Sr
复制标题
In和Sr静态极化率和超极化率的有限场计算
DOI：
10.1103/physreva.92.052515
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发表时间：
2015-01
期刊：
影响因子：
--
通讯作者：
Liu, Wuming
中科院分区：
文献类型：
--
作者：
Suo, Bingbing;Feng, Huihui;Fan, Heng;Liu, Wuming
用有限场方法计算了In$^+$和Sr两个重频标候选者的电子关联，并采用相对论耦合团簇和组态相互作用方法结合递增基组实现了电子关联的渐进层次.给出了基态5s^2 $^1S_0$和低激发态5s 5 p $^3P^{\rmo}_{0，1}的偶极极化率、偶极超极化率、四极矩和四极极化率，通过对完全相对论电子关联计算和标量相对论电子关联计算的比较研究，揭示了自旋-自旋相互作用的影响。轨道相互作用对In$^{+}$和Sr的偶极极化率的影响。最后，由于偶极极化率，偶极超极化率，计算了In$^+$和Sr的时钟跃迁5s$^2$$^1S_0 $ -5s5p$^3P ^{\rmo}_0$的极化率和四极极化率。
The finite field calculations are performed for two heavy frequency-standard candidates In$^+$ and Sr. The progressive hierarchy of electron correlations is implemented by the relativistic coupled-cluster and configuration interaction methods combined with basis set of increasing size. The dipole polarizabilities, dipole hyperpolarizabilities, quadrupole moments, and quadrupole polarizabilities are recommended for the ground state 5s$^2$ $^1S_0$ and low-lying states 5s5p $^3P^{\rm o}_{0,1,2}$ of In$^+$ and Sr. Comparative study of the fully and scalar relativistic electron correlation calculations reveals the effect of the spin-orbit interaction on the dipole polarizabilities of In$^{+}$ and Sr. Finally, the blackbody-radiation shifts due to the dipole polarizability, dipole hyperpolarizability, and quadrupole polarizability are evaluated for the clock transition 5s$^2$ $^1S_0$ - 5s5p $^3P^{\rm o}_0$ of In$^+$ and Sr.
影响因子：
4.1
作者：
R. Stephenson
通讯作者：
R. Stephenson