论文标题
电子动力学和超快光谱的理论方法
A theoretical approach for electron dynamics and ultrafast spectroscopy
论文作者
论文摘要
在本手稿中，我们提出了一个理论框架及其数值实现，以模拟由凝结物质系统中超舒服激光脉冲的相互作用引起的不平衡电子动力学。我们的方法是基于实时发展的互惠空间中系统密度矩阵的发展。它考虑了激子和非扰动光 - 摩擦相互作用。我们展示了一些相关示例，这些例子说明了描述现实超快光谱实验的方法的效率和灵活性。我们的方法适合在Attosement Tage量表上对有前途和新兴的超快研究进行建模，该研究旨在通过X射线吸收光谱法捕获电子动力学和动态电子电子相关性。
In this manuscript we present a theoretical framework and its numerical implementation to simulate the out-of-equilibrium electron dynamics induced by the interaction of ultrashort laser pulses in condensed-matter systems. Our approach is based on evolving in real-time the density matrix of the system in reciprocal space. It considers excitonic and non-perturbative light-matter interactions. We show some relevant examples that illustrate the efficiency and flexibility of the approach to describe realistic ultrafast spectroscopy experiments. Our approach is suitable for modeling the promising and emerging ultrafast studies at the attosecond time scale that aim at capturing the electron dynamics and the dynamical electron-electron correlations via X-ray absorption spectroscopy.
