Equation of state and transport coefficients of warm dense aluminum from mixed deterministic-stochastic density functional theory
Abstract
Aluminum is a reference standard in high-energy-density research and serves as a liner material in megampere Z-pinch facilities. Using mixed deterministic-stochastic finite-temperature density functional theory, we compute the equation of state and transport coefficients of liquid aluminum up to temperatures of 1000 eV and compare the results with model-based approaches. We find that for T<200 eV the density-functional results differ from the models by more than 10% at high density, with a maximum deviation of over 30% (at T = 10 eV), leading to significant discrepancies in the Hugoniot curve at high compression; the calculated electrical and thermal conductivities deviate from model predictions by 26% to 63% at T~100 eV. We further employ the Drude model and the Epperlein-Haines framework to examine the magnetic-field dependence of the conductivities. These results can provide valuable input data for radiation-hydrodynamics codes.
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BibTeX
@misc{li2026equation,
title = {{Equation of state and transport coefficients of warm dense aluminum from mixed deterministic-stochastic density functional theory}},
author = {Zi Li and Weijie Li and Cong Wang and Ping Zhang and Xianjue Peng},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.29435},
eprint = {2609.29435},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.29435},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Equation of state and transport coefficients of warm dense aluminum from mixed deterministic-stochastic density functional theory
AU - Zi Li
AU - Weijie Li
AU - Cong Wang
AU - Ping Zhang
AU - Xianjue Peng
PY - 2026
DA - 2026/09/24
PB - arXiv
DO - 10.48550/arxiv.2609.29435
UR - https://arxiv.org/abs/2609.29435
AB - Aluminum is a reference standard in high-energy-density research and serves as a liner material in megampere Z-pinch facilities. Using mixed deterministic-stochastic finite-temperature density functional theory, we compute the equation of state and transport coefficients of liquid aluminum up to temperatures of 1000 eV and compare the results with model-based approaches. We find that for T<200 eV the density-functional results differ from the models by more than 10% at high density, with a maximum deviation of over 30% (at T = 10 eV), leading to significant discrepancies in the Hugoniot curve at high compression; the calculated electrical and thermal conductivities deviate from model predictions by 26% to 63% at T~100 eV. We further employ the Drude model and the Epperlein-Haines framework to examine the magnetic-field dependence of the conductivities. These results can provide valuable input data for radiation-hydrodynamics codes.
ER -