One-component-plasma: Going beyond Debye-Hückel
Max-Planck-Institut für Kolloid- und Grenzflächenforschung,
14424 Postdam, Germany
Published online: 13 August 2013
Using field-theoretic methods, we calculate the internal energy for the One-Component Plasma (OCP). We go beyond the recent calculation by Brilliantov [N. Brilliantov, Contrib. Plasma Phys. 38, 489 (1998)] by including non-Gaussian terms. We show that, for the whole range of the plasma parameter Γ, the effect of the higher-order terms is small and that the final result is not improved relative to the Gaussian theory when compared to simulations.
PACS: 52.25.Kn – Thermodynamics of plasmas / 61.20.Gy – Theory and models of liquid structure / 05.20.-y – Classical statistical mechanics
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000