Ultracold Collisions in Traps, Beams, and Condensates

陷阱、光束和凝结水中的超冷碰撞

• 批准号: 9722473
• 负责人: John Weiner
• 金额: $ 40万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-01 至 2001-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9722473&HistoricalAwards=false
• 关键词: Ultracold; Collisions; Traps; Beams; Condensates

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.

本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，生产和捕获超冷分子和超冷碰撞光谱和附近的玻色-爱因斯坦凝聚体，虽然在连续动力学研究中的光缔合电离铷原子和偏振各向异性的光屏蔽和抑制将发挥作用。 所有过程都依赖于原子激发到与分子间势曲线具有特定关系的选定状态，使得键的形成和断裂可以以仔细控制的方式发生。