Orbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.

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 p...

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Những tác giả chính: White, T, Richardson, S, Crowley, B, Pattison, L, Harris, J, Gregori, G
Định dạng: Journal article
Ngôn ngữ:English
Được phát hành: 2013
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author White, T
Richardson, S
Crowley, B
Pattison, L
Harris, J
Gregori, G
author_facet White, T
Richardson, S
Crowley, B
Pattison, L
Harris, J
Gregori, G
author_sort White, T
collection OXFORD
description 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.
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spelling oxford-uuid:77baca1e-829f-4009-8e3e-ba9580e931332022-03-26T20:26:01ZOrbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:77baca1e-829f-4009-8e3e-ba9580e93133EnglishSymplectic Elements at Oxford2013White, TRichardson, SCrowley, BPattison, LHarris, JGregori, GHere, 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.
spellingShingle White, T
Richardson, S
Crowley, B
Pattison, L
Harris, J
Gregori, G
Orbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.
title Orbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.
title_full Orbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.
title_fullStr Orbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.
title_full_unstemmed Orbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.
title_short Orbital-free density-functional theory simulations of the dynamic structure factor of warm dense aluminum.
title_sort orbital free density functional theory simulations of the dynamic structure factor of warm dense aluminum
work_keys_str_mv AT whitet orbitalfreedensityfunctionaltheorysimulationsofthedynamicstructurefactorofwarmdensealuminum
AT richardsons orbitalfreedensityfunctionaltheorysimulationsofthedynamicstructurefactorofwarmdensealuminum
AT crowleyb orbitalfreedensityfunctionaltheorysimulationsofthedynamicstructurefactorofwarmdensealuminum
AT pattisonl orbitalfreedensityfunctionaltheorysimulationsofthedynamicstructurefactorofwarmdensealuminum
AT harrisj orbitalfreedensityfunctionaltheorysimulationsofthedynamicstructurefactorofwarmdensealuminum
AT gregorig orbitalfreedensityfunctionaltheorysimulationsofthedynamicstructurefactorofwarmdensealuminum