Vector-correlation in three particle continuum states

分子动力学的最新进展表明，理论现在已经能够预测和解释三粒子连续状态实验中的动量-矢量相关性。这些矢量相关性描述了当一个分子解离成三个重碎片时动量矢量和能量共享的方向。迄今为止，我们的小组和Continetti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TSR研究中解离重组。近10年来，这些实验一直在没有理论指导的情况下进行。直到最近才出现了关于三粒子连续问题、半经典轨迹计算和全量子力学波包传播的第一理论论文。后者在矢量相关图中预测高度结构化的干扰特征。这些预测对实验的确认提出了挑战，这是这里提出的项目的主要目标。

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.