A reduced coupled mode description for the electron-ion energy relaxation in dense matter
نویسندگان
چکیده
منابع مشابه
Structure of Strongly Coupled Electron-Ion Systems
The particles in dense plasmas exhibit a short range structure well-known from fluids. This structure is an important input quantity for the theoretical description of the thermodynamical, relaxation and transport properties of the system [1]. Static structural properties are described by the pair distribution g(r) or the structure factor S(k). Unlike many fluids, dense plasmas are inherently a...
متن کاملKinetic approach to temperature relaxation in dense plasmas
The relaxation of nonideal two-temperature plasmas is investigated with a kinetic approach. First the energy transfer between the electrons and ions is described using different approximations: the energy transfer through classical collisions (Landau-Spitzer approach) is reviewed; quantum diffraction and strong collisions are included by applying the quantum Boltzmann equation; the influence of...
متن کاملCollective Modes and Energy Transfer in Two-Temperature-Plasmas
Electron-ion collisions are one of the main processes that drive the relaxation towards equilibrium. Most theoretical approaches of the connected energy transfer consider only independent binary collisions (see, e.g., Refs. [1-3]); collective excitations are neglected. Although decoupled electron-ion modes have only small effects [4], Dharmawardana & Perrot found strongly reduced energy transfe...
متن کاملCorrelation effects on the temperature-relaxation rates in dense plasmas.
We present a model for the rate of temperature relaxation between electrons and ions in plasmas. The model includes self-consistently the effects of particle screening, electron degeneracy, and correlations between electrons and ions. We successfully validate the model over a wide range of plasma coupling against molecular-dynamics simulations of classical plasmas of like-charged electrons and ...
متن کاملEnergy relaxation and the quasiequation of state of a dense two-temperature nonequilibrium plasma
A first principles approach to the equation of state ~EOS! and the transport properties of an interacting mixture of electrons, ions, and neutrals in thermodynamic equilibrium was presented recently in Phys. Rev. E 52, 5352 ~1995!. However, many dynamically produced plasmas have an electron temperature Te different from the ion temperature Ti . The study of these nonequilibrium ~non-eq.! system...
متن کامل