The hydrogen equation of state at high densities

Details The hydrogen equation of state at high densities The hydrogen equation of state at high densities

2011-08-24

arxiv.org/abs/1108.4826v1

Physics

Plasma Physics

10 pages, 6 figures, 1 table

Scientific paper

We use a two-fluid model combining the quantum Green's function technique for the electrons and a classical HNC description for the ions to calculate the high-density equation of state of hydrogen. This approach allows us to describe fully ionized plasmas of any electron degeneracy and any ionic coupling strength which are important for the modeling of a variety of astrophysical objects and inertial confinement fusion targets. We have also performed density functional molecular dynamics simulations (DFT-MD) and show that the data obtained agree with our approach in the high density limit. Good agreement is also found between DFT-MD and quantum Monte Carlo simulations. The thermodynamic properties of dense hydrogen can thus be obtained for the entire density range using only calculations in the physical picture.

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