相对论多参考Fock空间耦合团簇计算镱中的禁戒$6s^2^1 S_0 \longrightarrow 6s5d^3 D_1$磁偶极跃迁
Relativistic multi-reference Fock-space coupled-cluster calculation of the forbidden $6s^2^1 S_0 \longrightarrow 6s5d^3 D_1$ magnetic-dipole transition in ytterbium
摘要：
本文报道了用多参考Fock空间耦合团簇理论计算的$6s^{2} ^{1}S_{0}\longrightarrow6s5d ^{3}D_{1}$禁戒磁偶极跃迁振幅。我们计算的转移矩阵元（$1.34\times10^{-4}μ_{B}$）与实验值（$1.33\times10^{-4}$ $μ_{B}$）非常吻合。该值与其它已知量结合将有助于确定Yb原子中$6s^{2} ^{1}S_{0}\longrightarrow6s5d ^{3}D_{1}$跃迁的宇称非守恒振幅。据我们所知，我们的计算是迄今为止最精确的，在标准模型之外的物理研究中可能非常重要。我们进一步报告的$6s6p ^{3}P_{0}\longrightarrow6s6p ^{1}P_{1}$和$6s5d ^{3}D_{1}\longrightarrow6s6p ^{3}P_{0}$的过渡矩阵元素，这也是在较早的理论估计吻合得很好。
英文摘要：
We report the forbidden $6s^{2} ^{1}S_{0}\longrightarrow6s5d ^{3}D_{1}$ magnetic-dipole transition amplitude computed using multi-reference Fock-space coupled-cluster theory. Our computed transition matrix element ($1.34\times10^{-4}μ_{B}$) is in excellent agreement with the experimental value ($1.33\times10^{-4}$ $μ_{B}$). This value in combination with other known quantities will be helpful to determine the parity non-conserving amplitude for the $6s^{2} ^{1}S_{0}\longrightarrow6s5d ^{3}D_{1}$ transition in atomic Yb. To our knowledge our calculation is the most accurate to date and can be very important in the search of physics beyond the standard model. We further report the $6s6p ^{3}P_{0}\longrightarrow6s6p ^{1}P_{1}$ and $6s5d ^{3}D_{1}\longrightarrow6s6p ^{3}P_{0}$ transition matrix elements which are also in good agreement with the earlier theoretical estimates.
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