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arXiv · 2605.11308

Capturing many-body effects in electrical conductivity of warm dense matter

Brian P. Robinson·Alina Kononov·Lucas J. Stanek·Andrew D. Baczewski·André Schleife·Stephanie B. Hansen
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Abstract

Conductivity models for warm dense matter inform simulations of planetary structure and fusion experiments. State-of-the-art conductivity calculations based on density functional theory approximate many-body physics and neglect electron-electron scattering lifetimes. We introduce a many-body framework for electrical conductivity using the GW approximation of the electronic self-energy. For beryllium, improved transition energies yield a surprisingly large reduction in low-temperature DC conductivity, while electron-electron scattering primarily reduces high-temperature DC conductivity.

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Brian P. Robinson, Alina Kononov, Lucas J. Stanek, Andrew D. Baczewski, André Schleife, Stephanie B. Hansen. 2026-05-11. Capturing many-body effects in electrical conductivity of warm dense matter. https://arxiv.org/abs/2605.11308

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