Vector-correlation in three particle continuum states

三个粒子连续态中的矢量相关性

• 批准号: 200692731
• 负责人: Professor Dr. Hanspeter Helm
• 金额: --
• 依托单位: Abteilung Attosekunden- und Starkfeldphysik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/200692731?language=en
• 关键词: Vector; correlation; three; particle; continuum

Recent advances in molecular dynamics indicate that theory is now on the verge of being able to predict and to explain the momentum-vector-correlations in three-particle-continuum state experiments. These vector correlations describe the orientation of momentum vectors and energy sharing when a molecule dissociates into three heavy fragments. Such experiments have to date been carried out on neutral triatomic hydrogen, by our group and that of Continetti, and in an indirect fashion in the TSR study of dissociative recombination. For almost 10 years these experiments had been carried out without guidance from theory. Only very recently did first theory papers appear on the three-particle continuum problem, in semiclassical trajectory calculations and in full quantum-mechanical wavepacket propagation. The latter predict highly structured interference features in the vector-correlation maps. These predictions challenge the experiment for confirmation, a primary goal of the project proposed here.

分子动力学的最新进展表明，该理论即将能够预测和解释三粒子连续态实验中的动量矢量关联。这些矢量关联描述了分子离解成三个重碎片时动量矢量的方向和能量分配。到目前为止，我们的小组和康尼蒂的小组已经在中性三原子氢上进行了这样的实验，并以间接的方式在解离复合的TSR研究中进行了实验。近10年来，这些实验一直在没有理论指导的情况下进行。直到最近才出现了第一篇关于三粒子连续问题、半经典轨道计算和全量子力学波包传播的理论论文。后者预测高度结构化的干扰功能的矢量相关图。这些预测对实验提出了挑战，以进行确认，这是本文提出的项目的主要目标。

项目成果

Imaging of spatial many-body wave functions via linear momentum measurements.

• DOI: 10.1039/c3cp53300j
• 发表时间: 2014-01
• 期刊: Physical chemistry chemical physics : PCCP
• 作者: P. C. Fechner;H. Helm

Profound isotope effect in dissociation of triatomic hydrogen.

三原子氢离解中的深刻同位素效应

• DOI: 10.1021/jp312560t
• 发表时间: 2013
• 期刊: The journal of physical chemistry. A
• 作者: P. C. Fechner;K. Mozer;H. Helm
• 通讯作者: H. Helm