Electric dipole and quadrupole properties of the Cd atom for atomic-clock applications
Electric dipole and quadrupole properties of the Cd atom for atomic-clock applications
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原子钟应用中镉原子的电偶极子和四极子特性
DOI：
10.1103/physreva.103.013109
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发表时间：
2021-01
期刊：
影响因子：
--
通讯作者：
B. K. Sahoo
中科院分区：
文献类型：
--
作者：
Guo-Xi Tong;Yan-Mei Yu;B. K. Sahoo
We present accurate values of the atomic properties that are sensitive to an external electric field in an experiment, such as static electric dipole and quadrupole polarizabilities, hyperpolarizabilities, and quadrupole moments of the low-lying $5{s}^{2}\phantom{\rule{0.16em}{0ex}}^{1}S_{0}$, $5s5p\phantom{\rule{0.16em}{0ex}}^{3}P_{0,1,2}$, and $5s5p\phantom{\rule{0.16em}{0ex}}^{1}P_{1}$ states of the Cd atom. The four-component relativistic coupled-cluster theory is employed to determine the atomic wave functions and energies. The finite-field approach is adopted to estimate the above quantities from the evaluated energies. The roles of electron correlation effects in the calculations are demonstrated by giving results that are obtained with different approximations. Precise knowledge of the above spectroscopic properties is useful for estimating typical systematics of the optical clocks built using the Cd atoms.
We present accurate values of the atomic properties that are sensitive to an external electric field in an experiment, such as static electric dipole and quadrupole polarizabilities, hyperpolarizabilities, and quadrupole moments of the low-lying $5{s}^{2}\phantom{\rule{0.16em}{0ex}}^{1}S_{0}$, $5s5p\phantom{\rule{0.16em}{0ex}}^{3}P_{0,1,2}$, and $5s5p\phantom{\rule{0.16em}{0ex}}^{1}P_{1}$ states of the Cd atom. The four-component relativistic coupled-cluster theory is employed to determine the atomic wave functions and energies. The finite-field approach is adopted to estimate the above quantities from the evaluated energies. The roles of electron correlation effects in the calculations are demonstrated by giving results that are obtained with different approximations. Precise knowledge of the above spectroscopic properties is useful for estimating typical systematics of the optical clocks built using the Cd atoms.
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影响因子：
8.6
作者：
J. Thyssen;J. K. Laerdahl;P. Schwerdtfeger
通讯作者：
J. Thyssen;J. K. Laerdahl;P. Schwerdtfeger
影响因子：
4.4
作者：
L. Visscher;Timothy J. Lee;K. Dyall
通讯作者：
L. Visscher;Timothy J. Lee;K. Dyall
DOI：
10.1007/bf01113551
发表时间：
1995-06
期刊：
Theoretica chimica acta
影响因子：
--
作者：
P. Neogrády;V. Kellö;M. Urban;A. J. Sadlej
通讯作者：
P. Neogrády;V. Kellö;M. Urban;A. J. Sadlej
影响因子：
2.9
作者：
S. Porsev;M. Safronova
通讯作者：
S. Porsev;M. Safronova
DOI：
10.1007/bf01133080
发表时间：
1995-06
期刊：
Theoretica chimica acta
影响因子：
--
作者：
V. Kellö;A. J. Sadlej
通讯作者：
V. Kellö;A. J. Sadlej