Work

Ab initio Maxwell-Bloch approach for x-ray excitations in two-dimensional materials

Year: 2025

Type: article

Abstract: The combination of Maxwell and Bloch equations is an ideal framework to describe ultrafast time-resolved x-ray experiments on an attosecond timescale in crystals. However, broadband experiments such as x-ray absorption near-edge spectroscopy or resonant inelastic x-ray scattering require detailed knowledge of the electronic structure and transition matrix elements. Here, we show how to fill this gap by combining the Maxwell-Bloch formalism with first-principles calculations treating explicitly the core states. The resulting x-ray absorption spectrum recovers key spectral signatures which were missing in previous work relying on a semiempirical tight-binding approach.

Source: Physical review. B./Physical review. B

DOI: 10.1103/m8gf-z5fm

Authors: Joris Sturm, Ivan Maliyov, Dominik Christiansen, Malte Selig, Marco Bernardi, Andreas Knorr

Institutions: Technische Universität Berlin, California Institute of Technology

Language: English

Topic: X-ray Spectroscopy and Fluorescence Analysis

Subfield: Radiation

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid