Thermodynamic coherence of the Variational Average-Atom in Quantum Plasmas (VAAQP) approach

Details Thermodynamic coherence of the Variational Average-Atom in Quantum Plasmas (VAAQP) approach Thermodynamic coherence of the Variational Average-Atom in Quantum Plasmas (VAAQP) approach

2009-02-17

arxiv.org/abs/0902.2900v1

Physics

Plasma Physics

Scientific paper

A new code called VAAQP (Variational Average-Atom in Quantum Plasmas) is reported. The model as well as main results of previous studies are briefly recalled. The code is based on a new fully variational model of dense plasmas at equilibrium with quantum treatment of all electrons. The code can calculate the Average Atom structure and the mean ionization from the variational equations respecting the virial theorem and without imposing the neutrality of the Wigner-Seitz sphere. The formula obtained for the electronic pressure is simple and does not require any numerical differentiation. A description of the principal features of the code is given. The thermodynamic consistency of the results obtained with VAAQP is shown by a comparison with another approach on the example of the aluminium 10 eV isotherm EOS curve. A first comparison to an INFERNO-type model is also presented.

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