title: Direct linear term in the equation of state of plasmas.
abstract: We discuss a long-standing discrepancy in the equation of state of charge-neutral plasmas, the occurrence of an e(2) direct term. This e(2) term may appear in dependence of the way to determine the mean value of the potential energy. We show that such a contribution should not appear for pure Coulomb interaction.
authors: Institut für Physik der Universität Rostock, 18051 Rostock, Germany.
authors: W D
authors: WD
authors: Kraeft
authors: Institut für Physik der Universität Rostock, 18051 Rostock, Germany.
authors: D
authors: D
authors: Kremp
authors: Institut für Physik der Universität Rostock, 18051 Rostock, Germany.
authors: G
authors: G
authors: Röpke