刘小井

研究原子、分子和团簇在同步辐射、飞秒激光、自由电子激光下的激发、电离、Auger电子发射和解离等过程。原子分子是化学反应中的最小单元，原子、分子和团簇是研究量子多体问题的理想体系。原则上所有的微观反应过程都可以统一用电子和原子核在不同时空尺度上的运动来表述，但是处于激发态的多尺度量子多体问题求解一直难于得到解决。同步辐射提供能量从几十到几千电子伏的高度单色化的光子，可以精确选择激发态；飞秒激光下时间依赖的强激光场提供了研究动态过程和操控反应过程的手段，而自由电子激光结合了同步辐射和飞秒激光的优点。我们的目标是直接观察微观体系在反应中的电子和原子的实时运动。

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