Physics & Spacearticle2026-10-16

Plasma conductivity from warm dense matter to the Spitzer limit using mean-force kinetic theory

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Abstract

A theoretical model is developed to compute electronic transport coefficients extending from warm and dense to hot and dilute plasma conditions. This kinetic theory-based approach models strong Coulomb correlations by treating interactions using the potential of mean force, electron degeneracy using the Uehling-Uhlenbeck equation, and diffraction by computing cross sections quantum mechanically. The result provides a fast and accurate means to compute electrical conductivity,thermal conductivity and electrothermal coefficients, including contributions from electron-electron interactions. The model enables accurate calculation of materials properties in many warm dense matter systems, including inertial confinement fusion, stellar evolution, and high energy density plasma experiments.

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View paper (DOI)Open access versionOpenAlexPhysical Review LettersPublished 2026-10-16

Authors: Lucas J. Babati, Nathaniel R. Shaffer, Louis Jose, Scott Baalrud