标题： 电场 Dressing 的超长程极性里德堡分子 显示英文标题

标题： Electrically Dressed Ultralong-Range Polar Rydberg Molecules

摘要： 我们研究了电场对超长程极性双原子里德堡分子结构的影响。同时考虑了里德堡电子与中性基态原子的s波和p波相互作用。在存在电场的情况下，电场与核间轴之间的角度自由度获得了振动特性，我们遇到了具有反平行平衡构型的二维振荡绝热势能面。电场允许以这样一种方式移动相应的势阱，从而可以控制p波相互作用的重要性，并且各个势阱以不同的速率能量下降。因此，随着电场强度的增加，平衡构型和对应的最低能量势阱会移动到更大的核间距离。对于强电场，非极性分子里德堡态的混合会导致从原子基态通过双光子过程激发大角动量极性状态的可能性。分析了电偶极矩和振动光谱随电场强度变化而产生的特性。 显示英文摘要

摘要： We investigate the impact of an electric field on the structure of ultralong-range polar diatomic Rydberg molecules. Both the s-wave and p-wave interactions of the Rydberg electron and the neutral ground state atom are taken into account. In the presence of the electric field the angular degree of freedom between the electric field and the internuclear axis acquires vibrational character and we encounter two-dimensional oscillatory adiabatic potential energy surfaces with an antiparallel equilibrium configuration. The electric field allows to shift the corresponding potential wells in such a manner that the importance of the p-wave interaction can be controlled and the individual wells are energetically lowered at different rates. As a consequence the equilibrium configuration and corresponding energetically lowest well move to larger internuclear distances for increasing field strength. For strong fields the admixture of non-polar molecular Rydberg states leads to the possibility of exciting the large angular momentum polar states via two-photon processes from the ground state of the atom. The resulting properties of the electric dipole moment and the vibrational spectra are analyzed with varying field strength.