标题： 偶极-偶极耦合的双里德伯分子 显示英文标题

标题： Dipole-Dipole coupled double Rydberg molecules

摘要： 我们证明两个里德伯原子之间的偶极-偶极相互作用可以导致长程分子的形成。 结合势能来源于两个趋向于不同分离原子渐近态的状态。 这些状态在大距离时弱相互作用，但随着原子间距离的减小，范德华相互作用转变为共振偶极-偶极相互作用时，它们开始强烈排斥彼此。 这种机制导致其中一个势能形成吸引势阱。 如果两个分离原子渐近态来自原子里德伯能级的小斯塔克分裂，该分裂消除了塞曼简并，则势阱的深度及其最小值的位置由外部电场控制。 我们讨论了两种不同的几何结构，分别导致局域化和环形势能。 显示英文摘要

摘要： We show that the dipole-dipole interaction between two Rydberg atoms can give rise to long range molecules. The binding potential arises from two states that converge to different separated atom asymptotes. These states interact weakly at large distances, but start to repel each other strongly as the van der Waals interaction turns into a resonant dipole-dipole interaction with decreasing separation between the atoms. This mechanism leads to the formation of an attractive well for one of the potentials. If the two separated atom asymptotes come from the small Stark splitting of an atomic Rydberg level, which lifts the Zeeman degeneracy, the depth of the well and the location of its minimum are controlled by the external electric field. We discuss two different geometries that result in a localized and a donut shaped potential, respectively.