Ultracold Collisions in Traps, Beams, and Condensates

这项研究计划探索使用光场来操纵原子碰撞。这项工作有两个主要目标，即在玻色-爱因斯坦凝聚体中和附近产生和捕获超冷分子，以及超冷碰撞光谱，尽管在连续介质动力学中的Rb原子的光缔合电离以及光学屏蔽和抑制的偏振各向异性将发挥作用。所有过程都依赖于原子对选定状态的激发，这些状态与分子间势能曲线有特定的关系，因此键的形成和断裂可以以一种仔细控制的方式发生。

This research program explores the use of optical fields to manipulate atomic collisions. The work has two principal goals, production and trapping of ultracold molecules and ultracold collision spectroscopy in and near a Bose-Einstein condensate, although studies in continuum dynamics in the photoassociative ionization of rubidium atoms and polarization anisotropy of optical shielding and suppression will play a part. All processes rely on the excitation of atoms to selected states that have specific relationships to the intermolecular potential curves, such that bond formation and breaking can occur in a carefully controlled manner.