论文标题
cesium $ nd_ {j} $+$ 6S_ {1/2} $ rydberg分子及其永久性电偶极矩
Cesium $nD_{J}$+$6S_{1/2}$ Rydberg molecules and their permanent electric dipole moments
论文作者
论文摘要
Cs$_2$ Rydberg-ground molecules consisting of a Rydberg, $nD_{J}$ (33 $\leq$ $n$ $\leq$ 39), and a ground state atom, 6$S_{1/2} (F=$3 or 4$)$, are investigated by photo-association spectroscopy in a cold atomic gas.我们观察到对应于Triplet $^tς$和混合$^{s，t}σ$分子状态的振动光谱。我们为最低振动状态与主量子数的能量建立缩放定律，并从实验数据和Fermi模型中获得零能量的单元和Triplet $ S $ - 波散射长度。电场中的线扩展揭示了永久性分子电 - 偶极力矩。测量值与计算非常吻合。我们讨论偶极矩的负极性，这与先前报道的病例不同。
Cs$_2$ Rydberg-ground molecules consisting of a Rydberg, $nD_{J}$ (33 $\leq$ $n$ $\leq$ 39), and a ground state atom, 6$S_{1/2} (F=$3 or 4$)$, are investigated by photo-association spectroscopy in a cold atomic gas. We observe vibrational spectra that correspond to triplet $^TΣ$ and mixed $^{S,T}Σ$ molecular states. We establish scaling laws for the energies of the lowest vibrational states vs principal quantum number and obtain zero-energy singlet and triplet $s$-wave scattering lengths from experimental data and a Fermi model. Line broadening in electric fields reveals the permanent molecular electric-dipole moments; measured values agree well with calculations. We discuss the negative polarity of the dipole moments, which differs from previously reported cases.
