Addendum to "Equation of state of classical Coulomb plasma mixtures".
Recently developed analytic approximation for the equation of state of fully ionized nonideal electron-ion plasma mixtures [A. Y. Potekhin, G. Chabrier, and F. J. Rogers, Phys. Rev. E 79, 016411 (2009)], which covers the transition between the weak and strong Coulomb coupling regimes and reproduces numerical results obtained in the hypernetted-chain (HNC) approximation, is modified in order to fit the small deviations from the linear mixing in the strong-coupling regime, revealed by recent Monte Carlo simulations. In addition, a mixing rule is proposed for the regime of weak coupling, which generalizes post-Debye density corrections to the case of mixtures and numerically agrees with the HNC approximation in that regime.
Potekhin
A Y
AY
Ioffe Physical-Technical Institute, St. Petersburg, Russia. palex@astro.ioffe.ru
Chabrier
G
G
Chugunov
A I
AI
DeWitt
H E
HE
Rogers
F J
FJ
D000465:Algorithms; D045424:Complex Mixtures / Q000737:chemistry*; D003198:Computer Simulation; D005740:Gases / Q000737:chemistry*; D006358:Hot Temperature; D008956:Models, Chemical; D012212:Rheology / Q000379:methods*; D055672:Static Electricity
D045424:Complex Mixtures; D005740:Gases