Ultracold Atoms Near the Ionization Threshold

接近电离阈值的超冷原子

• 批准号: 9722602
• 负责人: Phillip Gould
• 金额: $ 42.22万
• 依托单位: University of Connecticut
• 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 2001-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9722602&HistoricalAwards=false
• 关键词: Ultracold; Atoms; Near; Ionization; Threshold

This is a program to investigate ultra-cold atoms near the ionization threshold. Rubidium atoms will be chilled using laser techniques, followed by excitation just below the ionization limit to produce a gas of ultra-cold Rydberg atoms or ionization just above the threshold to produce an ultra-cold plasma. Once these states are reached, atomic interactions and plasma physics will be explored in this entirely new parameter space of extremely low kinetic and potential energies. Collective effects are expected to emerge for the Rydberg species, while the ionized state should demonstrate properties of a strongly-coupled neutral plasma.

这是一个研究电离阈值附近超冷原子的程序。 铷原子将使用激光技术冷却，然后在电离极限以下激发，产生超冷的里德伯原子气体，或在阈值以上电离，产生超冷等离子体。 一旦达到这些状态，原子相互作用和等离子体物理将在这个全新的极低动能和势能的参数空间中进行探索。 集体效应预计会出现的里德伯物种，而电离状态应表现出强耦合中性等离子体的属性。