Jean-Christophe Pain, Gérard Dejonghe, Thomas Blenski
We present a self-consistent approach to the modeling of dense plasma
mixtures in local thermodynamic equilibrium. In each electron configuration the
nucleus is totally screened by electrons in a Wigner-Seitz sphere (ion-sphere
model). Bound and free electrons are treated quantum-mechanically. The
assumption that all species should have the same electronic environment leads
to the equality of the electronic pressure for all ions of all elements having
therefore different cell volumes. The variation of the average atomic radii of
the different elements with respect to temperature is investigated, and the
procedure is applied to the determination of pressure in the Sun center.
View original:
http://arxiv.org/abs/1111.3345
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