I present a fully ab initio scheme to model transient spectroscopy signals in the presence of strongly bound excitons. Using LiF as a prototype material, I show that the scheme is able to capture the exciton signature both in time-resolved angle-resolved photoemission spectroscopy and transient absorption experiments. The approach is completely general and can become the reference scheme for modeling pump and probe experiment in a wide range of materials.

中文翻译：

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瞬态吸收和时间分辨 ARPES 光谱中的激子和载流子：Anab initioapproach

我提出了一个完全从头开始的方案来模拟存在强束缚激子的瞬态光谱信号。使用 LiF 作为原型材料，我表明该方案能够在时间分辨角分辨光发射光谱和瞬态吸收实验中捕获激子特征。该方法是完全通用的，可以成为在各种材料中模拟泵和探针实验的参考方案。