Onset of negative dispersion in one-component-plasma revisited

Abstract

A simple approach to describe the long-wavelength dispersion of the longitudinal (plasmon) mode of the classical one-component-plasma (OCP), with the main objective to correctly capture the onset of negative dispersion, is proposed. The approach is applicable to both three-dimensional and two-dimensional OCP. The predicted onset of negative dispersion compares well with the available results from numerical simulations and more sophisticated theoretical models.

arXiv commentto be published in Physics of Plasmas

References in corpus (6)

• Dynamical correlations and collective excitations of Yukawa liquids
• Simple estimation of thermodynamic properties of Yukawa systems
• On the long-waves dispersion in Yukawa systems
• Wave spectra of 2D dusty plasma solids and liquids
• Internal energy of the classical two- and three-dimensional one-component-plasma
• Collective modes in two-dimensional one-component-plasma with logarithmic interaction

Cited by in corpus (13)

• Electronic Density Response of Warm Dense Matter
• Collective modes in simple melts: Transition from soft spheres to the hard sphere limit
• Thermodynamics and dynamics of two-dimensional systems with dipole-like repulsive interactions
• Elementary vibrational model for transport properties of dense fluids
• High-frequency elastic moduli of two-dimensional Yukawa fluids and solids
• Vibrational model of thermal conduction for fluids with soft interactions
• Simple dispersion relations for Coulomb and Yukawa fluids
• Practical dispersion relations for strongly coupled plasma fluids
• Collective modes of two-dimensional classical Coulomb fluids
• Dispersion relations of Yukawa fluids at weak and moderate coupling
• Elastic properties of dense hard-sphere fluids
• Collective ion dynamics in Coulomb one-component plasmas within the self-consistent relaxation theory
• Variational principles for the hydrodynamics of the classical one-component plasma