Ion Atom Collisions: Correlated Systems (Physics)

离子原子碰撞：相关系统（物理）

• 批准号: 8707383
• 负责人: John Reading
• 金额: $ 15.8万
• 依托单位: Texas A&M Research Foundation
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-01 至 1991-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8707383&HistoricalAwards=false
• 关键词: Ion; Atom; Collisions; Correlated; Systems

The development of beams of fast bare ions in the last two decades has allowed atomic physicists to vary the coupling constant in non-trivial ion-atom reactions, and much has been learned. In atoms, the electrons provide a wide range of velocity scales, and thus there has been motivation to concentrate on developing efficient computer codes to simultaneously describe excitation, ionization, and charge transfer in a broad energy region. The method chosen by the principal investigators for such studies has been a variational expansion of the wavefunction in a truncated space of Hilbert basis functions. Until now, all work done by the principal investigators has been carried out in the independent particle model approximation. In the present work, the Forced Impulse Method, which allows the solution of the fully correlated two- electron problem, will be developed.

近两年来快裸离子束的发展 几十年来，原子物理学家已经能够改变耦合， 在非平凡的离子-原子反应中是恒定的， 学 在原子中，电子提供了广泛的 速度尺度，因此有动力 专注于开发高效的计算机代码， 同时描述激发、电离和电荷 在广阔的能源领域。 选择的方法 这些研究的主要研究者一直是一个变化的 截断希尔伯特空间中波函数的展开 基函数 到目前为止，校长所做的所有工作 研究人员在独立粒子中进行了 模型近似 在目前的工作中，强迫冲动 方法，它允许解决完全相关的两个- 电子问题，将得到发展。