Wide range equation of state for fluid hydrogen within density functional theory

Abstract

Wide range equation of state (EOS) for liquid hydrogen is ultimately built by combining two kinds of density functional theory (DFT) molecular dynamics simulations, namely, first-principles molecular dynamics simulations and orbital-free molecular dynamics simulations. Specially, the present introduction of short cutoff radius pseudopotentials enables the hydrogen EOS to be available in the range $9.82\times 10^{-4}$ to $1.347\times 10^3$ g/cm${}^3$ and up to $5\times 10^7$ K. By comprehensively comparing with various attainable experimental and theoretical data, we derive the conclusion that our DFT-EOS can be readily and reliably conducted to hydrodynamic simulations of the inertial confinement fusion.

37 pages, 10 figures, 1 table

References in corpus (3)

• FPEOS: A First-Principles Equation of State Table of Deuterium for Inertial Confinement Fusion Applications
• Hydrogen-Helium Mixtures in the Interiors of Giant Planets
• Ab Initio Simulations of Dense Helium Plasmas

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