Excitation of Weakly Bound Molecules to Trilobitelike Rydberg States
Excitation of Weakly Bound Molecules to Trilobitelike Rydberg States
复制标题
DOI：
10.1103/physrevlett.111.053001
复制
发表时间：
2013-07-29
影响因子：
8.6
通讯作者：
Stwalley, W. C.
中科院分区：
文献类型：
--
作者：
Bellos, M. A.;Carollo, R.;Stwalley, W. C.
我们观察到超冷Rb-85(2)分子的“三叶虫”状态，其中基态原子被它的里德堡原子伙伴的电子波函数束缚。我们通过弱束缚分子的紫外线激发填充这些状态，并在低主量子数和35玻尔半径附近的振动拐点处获得三叶虫状状态。这表明，与之前使用自由束缚跃迁的研究不同，三叶虫态也可以通过束缚到束缚的跃迁来激发。这种方法提供了高的激发概率，而不需要高密度的样本，并提供了通过选择初始状态振动水平来控制激发半径的能力。
We observe "trilobitelike'' states of ultracold Rb-85(2) molecules, in which a ground-state atom is bound by the electronic wave function of its Rydberg-atom partner. We populate these states through the ultraviolet excitation of weakly bound molecules, and access a regime of trilobitelike states at low principal quantum numbers and with vibrational turning points around 35 Bohr radii. This demonstrates that, unlike previous studies that used free-to-bound transitions, trilobitelike states can also be excited through bound-to-bound transitions. This approach provides high excitation probabilities without requiring high-density samples, and affords the ability to control the excitation radius by selection of the initial-state vibrational level.