Onset of negative dispersion in one-component-plasma revisited
نویسندگان
چکیده
منابع مشابه
Plasmon dispersion of a weakly degenerate nonideal one - component plasma
Classical Molecular Dynamics simulations (MD) for a one-component weakly degenerate plasma are presented. Using an effective quantum pair potential (Kelbg potential), the dynamic structure factor and the dispersion of Langmuir waves are computed. The influence of the coupling strength Γ and degree of degeneracy ρΛ 3 on these properties is discussed. The results are compared with predictions of ...
متن کاملDynamical properties and plasmon dispersion of a weakly degenerate correlated one-component plasma.
Classical Molecular Dynamics simulations for a one-component plasma are presented. Quantum effects are included in the form of the Kelbg potential. Results for the dynamical structure factor are compared with the Vlasov and random phase approximation theories. The influence of the coupling parameter Gamma, degeneracy parameter rho Lambda(3), and the form of the pair interaction on the optical p...
متن کاملPhase diagram of Yukawa systems near the one-component-plasma limit revisited
Transition inverse temperatures ~or G values! at the fluid–solid phase boundary of Yukawa systems near the one-component-plasma ~OCP! limit have been evaluated by molecular dynamics simulations. These values are systematically smaller than those obtained in an earlier study by Farouki and Hamaguchi @J. Chem. Phys. 101, 9885 ~1994!#. The discrepancy is attributed to the fact that, in the earlier...
متن کاملThe one-component plasma: a conceptual approach
The one-component plasma (OCP) represents the simplest statistical mechanical model of a Coulomb system. For this reason, it has been extensively studied over the last forty years. The advent of the integral equations has resulted in a dramatic improvement in our ability to carry out numerical calculations, but came at the expense of a physical insight gained in a simpler analytic theory. In th...
متن کاملOne-Component-Plasma: Going Beyond Debye-Hückel
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...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2016
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.4965903