Energies, transition rates, and electron electric dipole moment (EDM) enhancement factors are calculated for low-lying states of Ce IV and Pr V using relativistic many-body perturbation theory. This study is related to recent investigations of the more complicated Gd IV ion, which is promising for electron EDM experiments. The ions Ce IV and Pr V both have a single valence electron, permitting one to carry out reliable ab-initio calculations of energy levels, transition rates and other atomic properties using well developed computational methods.
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。
Comment on "Reappraisal of the Electric Dipole Moment Enhancement Factor for Thallium"
Nataraj { \em et al}（Phys. Rev. Lett. { \bf 106}，200403（2011））提供了T1的EDM增强因子的计算，其与先前最精确的计算不一致。作者声称，由于对高阶相关性的更完整处理，他们对TI EDM的计算是最准确的。在本说明中，我们认为这一主张没有足够的证据支持。Nataraj { \em et al}也对我们的计算给出了误导性的评论。我们解释了我们的方法并回复了Nataraj { \em et al}的评论。
In this article, we have employed relativistic many-body theory to theoretically assess the suitability of TlF+ molecular ion in its ground state for electron electric dipole moment searches. To that end, we have computed values of the effective electric field as well as the molecular permanent electric dipole moment using both configuration interaction and coupled cluster methods with high quality basis sets, followed by an analysis on the role of electron correlation in the considered properties. We find that TlF+ has a large value of effective electric field of about 163 GV/cm, which is abo…
Electric-field induced dipole blockade with Rydberg atoms
高分辨激光斯塔克激发超冷铯原子的np（60 < n < 85）里德堡态，有效地阻断了长程偶极-偶极相互作用的激发.偶极阻断效应被观察为里德伯激发的淬灭，取决于由外部电场诱导的偶极矩的值。最终的离子，可以匹配偶极封锁效应的影响进行了详细讨论，但排除了我们的实验条件。相互作用的里德伯原子的激发的解析和蒙特卡罗模拟与实验一致，表明最近邻的里德伯原子的主要作用。
The prospects for an electron electric dipole moment search with ferroelectric (Eu,Ba)TiO$_3$ ceramics
我们建议使用铁电体（Eu，Ba）TiO $_3$陶瓷刚好高于它们的磁有序温度，用于灵敏的电子电偶极矩搜索。我们已经合成了一些这样的陶瓷与不同的Eu浓度和测量其相关的性能，这样的搜索：磁导率，磁化噪声，和铁电磁滞回线。我们的测量结果表明，与Eu $_{0.5}$ Ba $_{0.5}$ TiO $_3$的电子电偶极矩的搜索应导致一个数量级的改善电流的最佳限制。
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
Internal states of polar molecules can be controlled by microwave-frequency electric dipole transitions. If the applied microwave electric field has a spatial gradient, these transitions also affect the motion of these dipolar particles. This capability can be used to engineer phonon-mediated quantum gates between e.g. trapped polar molecular ion qubits without laser illumination and without the need for cooling near the motional ground state. The result is a high-speed quantum processing toolbox for dipoles in thermal motion that combines the precision microwave control of solid-state qubits …
We propose a new method to produce an electric and magnetic dipolar gas of ultracold dysprosium atoms. The pair of nearly degenerate energy levels of opposite parity, at 17513.33 cm$^{-1}$ with electronic angular momentum $J=10$, and at 17514.50 cm$^{-1}$ with $J=9$, can be mixed with an external electric field, thus inducing an electric dipole moment in the laboratory frame. For field amplitudes relevant to current-day experiments, we predict a magnetic dipole moment up to 13 Bohr magnetons, and an electric dipole moment up to 0.22 Debye, which is similar to the values obtained for alkali-met…
The francium atom is considered as a prospective candidate system to search for the T,P-violating electron electric dipole moment [T. Aoki et al Quantum Sci. Technol. 6, 044008 (2021)]. We demonstrate that the same experiment can be used for axionlike particles (ALP) search. For this, we calculate electronic structure constants of ALP-mediated interaction for a wide range of ALP masses. Using the recently updated constraints on the ALP-electron and ALP-nucleon coupling constants, we show that the contribution of considered interactions corresponding to these constraints can give significant co…
