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X-ray Thomson scattering absolute intensity from the f-sum rule in the imaginary-time domain

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arxiv 2305.15305 v2 pith:MU5OEO2L submitted 2023-05-24 physics.plasm-ph physics.optics

Tobias Dornheim , Tilo Döppner , Andrew D. Baczewski , Panagiotis Tolias , Maximilian P. Böhme , Zhandos A. Moldabekov , Thomas Gawne , Divyanshu Ranjan
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David A. Chapman Michael J. MacDonald Thomas R. Preston Dominik Kraus Jan Vorberger
This is my paper
classification physics.plasm-phphysics.optics
keywords approachf-sumimaginary-timeitcfrulescatteringthomsonx-ray
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We present a formally exact and simulation-free approach for the normalization of X-ray Thomson scattering (XRTS) spectra based on the f-sum rule of the imaginary-time correlation function (ITCF). Our method works for any degree of collectivity, over a broad range of temperatures, and is applicable even in nonequilibrium situations. In addition to giving us model-free access to electronic correlations, this new approach opens up the intriguing possibility to extract a plethora of physical properties from the ITCF based on XRTS experiments.

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