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Simulations of H–He mixtures using the van der Waals density functional

Part of: Plasma physics under extreme conditions

Published online by Cambridge University Press:  29 June 2018

Manuel Schöttler  and
Ronald Redmer
Manuel Schöttler*
Affiliation:
University of Rostock, Institute of Physics, D-18059 Rostock, Germany
Ronald Redmer
Affiliation:
University of Rostock, Institute of Physics, D-18059 Rostock, Germany
*
†Email address for correspondence: [email protected]
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Abstract

We show results on the high-pressure equation of state of hydrogen–helium mixtures obtained from finite-temperature density functional theory molecular dynamics simulations using the van der Waals density functional. We discuss the calculation of non-ideal entropies based on different methods and show how nuclear quantum corrections influence the free enthalpy of mixing. Furthermore, we calculate a Saturn isentrope based on our new equation of state data.

Keywords

astrophysical plasmasplasma properties
Type
Research Article
Information
Journal of Plasma Physics , Volume 84 , Issue 4 , August 2018 , 755840401
Copyright
© Cambridge University Press 2018 

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