Ultracold Collisions to Probe Fundamental Physics

超冷碰撞探索基础物理

• 批准号: 0355030
• 负责人: Robin Cote
• 金额: $ 18万
• 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: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0355030&HistoricalAwards=false
• 关键词: Ultracold; Collisions; Probe; Fundamental; Physics

The present proposal covers three interconnected topics: ultracold atom-atom collisions, ultracold atom-ion scattering, and modeling of ultracold samples doped with charged particles. The scattering properties of chromium, including dipole-dipole interactions in the presence of a magnetic field, will be computed using a within a multichannel treatment. Understanding these scattering properties of complex atoms becomes more important as such species arecooled to ultracold temperatures. The effect of Feshbach resonances on ultracoldmixtures, such as Li-H will also be investigated. Second, the impact of including hyperfineinteractions in studies of ultracold atom-ion scattering, will be examined. Finally, the behavior of ultracold samples of trapped gases doped with charged particles, will be studied.

本提案涵盖三个相互关联的主题：超冷原子-原子碰撞、超冷原子-离子散射以及掺杂带电粒子的超冷样品建模。铬的散射特性，包括磁场存在下的偶极子-偶极子相互作用，将使用多通道处理进行计算。 随着复杂原子被冷却至超冷温度，了解复杂原子的这些散射特性变得更加重要。 还将研究费什巴赫共振对超冷混合物（例如 Li-H）的影响。 其次，将研究超精细相互作用在超冷原子离子散射研究中的影响。最后，将研究掺杂带电粒子的捕获气体的超冷样品的行为。