论文标题
使用非平衡动力学均值场理论模拟时间依赖性谐振非弹性X射线散射
Simulation of time-dependent resonant inelastic X-ray scattering using non-equilibrium dynamical mean-field theory
论文作者
论文摘要
我们开发了一个框架，以使用非平衡动力学平均场理论模拟来评估时间依赖性的谐振非弹性X射线散射（RIX）信号。该方法基于时间相关的杂质模型的解，该模型明确合并了探针脉冲。它避免了计算四点相关函数的需求，并且可以原则上与不同的杂质求解器结合使用。这为研究多轨系统中时间分辨的RIX过程打开了一条途径。通过研究融化的莫特抗fiferromagnet的RIXS信号的研究来说明该方法。
We develop a framework to evaluate the time-dependent resonant inelastic X-ray scattering (RIXS) signal with the use of non-equilibrium dynamical mean field theory simulations. The approach is based on the solution of a time-dependent impurity model which explicitly incorporates the probe pulse. It avoids the need to compute four-point correlation functions, and can in principle be combined with different impurity solvers. This opens a path to study time-resolved RIXS processes in multi-orbital systems. The approach is exemplified with a study of the RIXS signal of a melting Mott antiferromagnet.
