Erlangen 2026 – scientific programme

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P: Fachverband Plasmaphysik

P 15: High Energy Density Physics II

P 15.2: Talk

Thursday, March 19, 2026, 11:30–11:45, KH 01.020

Model-free interpretation of X-ray Thomson scattering experiments with warm dense matter — •Tobias Dornheim — Institute of Radiation Physics, Helmholtz-Zentrum Dresden-Rossendorf (HZDR), D-01328 Dresden, Germany — Center for Advanced Systems Understanding (CASUS) at Helmholtz-Zentrum Dresden-Rossendorf (HZDR), D-02826 Görlitz, Germany

Warm dense matter is an extreme state that occurs in a variety of astrophysical objects (brown dwarfs, giant planet interiors, ...), and which is of key importance for technological applications such as inertial fusion energy. There are many ways to generate warm dense matter in the laboratory, but diagnostics even of basic parameters such as the temperature is difficult and often depends on models. Here, I summarize recent progress on the model-free diagnostics of warm dense matter from x-ray Thomson scattering measurements [1,2].

[1] T. Dornheim et al., Nature Commun. 13, 7911 (2022) [2] T. Dornheim et al., Nature Commun. 16, 5102 (2025)

Keywords: warm dense matter; x-ray Thomson scattering; dynamic structure factor