In search of the electron electric dipole moment: relativistic correlation calculations of the P,T-violation effect in the ground state of HI$^+$
T. A. Isaev, N. S. Mosyagin, A. N. Petrov, A. V. Titov
备注：
5 pages, submitted to Phys.Rev.Letters. Values of E_eff, A_\parallel and EQq_0 in HI+ calculated by restricted AGRECP/SCF/NOCR added of MS. We have also added data on the hyperfine coupling constant of the proton to molecular axis. Some typographyc errors are corrected
We report the first results of ab initio relativistic correlation calculation of the effective electric field on the electron, E_eff, in the ground state of the HI$^+$ cation. This value is required for interpretation of the suggested experiment on search for the electron electric dipole moment. The generalized relativistic effective core potential, Fock-space relativistic coupled cluster with single and double cluster amplitudes and spin-orbit direct configuration interaction methods are used, followed by nonvariational one-center restoration of the four-component wavefunction in the iodine core. The calculated value of E_eff by the coupled cluster method is E_eff=0.345\times 10^{24}Hz/e*cm. Configuration interaction study gives E_eff=0.336\times 10^{24}Hz/e*cm (our final value). The structure of chemical bonding and contributions to E_eff in HI$^+$ is clarified and significant deviation of our value from that obtained in Ravaine etal Phys.Rev.Lett., 94, 013001 (2005) is explained.
Probing interactions between Rydberg atoms with large electric dipole moments in amplitude modulated electric fields
实验研究了主量子数为$n=53$的里德堡-斯塔克态氦原子间的偶极-偶极相互作用，以及由诱导电偶极矩约为7900 D引起的近似线性斯塔克能移.实验在脉冲超音速亚稳态氦束中进行，粒子数密度高达$\sim10^9$ cm $^{-3}$。在振幅调制，射频电场的存在下，已观察到的光谱强度分布的变化与过渡到这些状态，归因于偶极-偶极相互作用内的合奏激发原子。实验结果与用Floquet方法计算的里德伯能级结构非常吻合，激发最多可由4个原子共享。使用这些里德堡-斯塔克态作为传感器的非共振宽带射频电噪声进行了讨论。
Accurate calculations of magnetic dipole and electric quadrupole hyperfine coupling constants of 6 P_{3/2} state of Cesium atom : A Relativistic Coupled Cluster approach
Probing exotic phenomena at the interface of nuclear and particle physics with the electric dipole moments of diamagnetic atoms: A unique window to hadronic and semi-leptonic CP violation
