title: Orbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.
abstract: Here, we report orbital-free density-functional theory (OF DFT) molecular dynamics simulations of the dynamic ion structure factor of warm solid density aluminum at T=0.5 eV and T=5 eV. We validate the OF DFT method in the warm dense matter regime through comparison of the static and thermodynamic properties with the more complete Kohn-Sham DFT. This extension of OF DFT to dynamic properties indicates that previously used models based on classical molecular dynamics may be inadequate to capture fully the low frequency dynamics of the response function.
authors.affiliation: Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom.
authors.forename: T G
authors.initials: TG
authors.lastname: White
authors.forename: S
authors.initials: S
authors.lastname: Richardson
authors.forename: B J B
authors.initials: BJ
authors.lastname: Crowley
authors.forename: L K
authors.initials: LK
authors.lastname: Pattison
authors.forename: J W O
authors.initials: JW
authors.lastname: Harris
authors.forename: G
authors.initials: G
authors.lastname: Gregori