【摘要】 化学反应共振态研究是化学动力学研究的重要前沿课题,对于理解基元化学反应的机理有重要的意义.本文中介绍了最近在这一研究方向的重大进展.通过对F+H2化学反应的全量子态分辨的分子束反应散射实验研究,观测到了F+H2中反应中明显的反应共振现象.通过高精度的全量子散射动力学研究,发现这一共振现象是由两个Feshbach共振态所引起的,而且这两个Feshbach共振态之间在前向散射有明显的量子干涉效应.这项研究工作使得我们对这一重要基元反应中的化学反应共振态研究向前迈进了一大步.更多还原

【Abstract】 Reaction resonance is a frontier topic in chemical dynamics research, and is also essential to the understanding of mechanisms of elementary chemical reactions. In this short article, we describe an important development in this reaction direction. Experimental evidence of reaction resonances has been detected in a full quantum state resolved reactive scattering study of the F+H₂ reaction. Highly accurate full quantum scattering theoretical modeling shows that the reaction resonance is caused by two Feshbach resonance states. Further studies show that quantum interference is present between the two Feshbach resonance states for the forward scattering product. This study is a significant step forward in our understanding of chemical reaction resonances in the benchmark F+H₂ system.更多还原