Optical conductivity of warm dense matter in wide frequency range within quantum statistical and kinetic approach

Abstract

Fundamental properties of warm dense matter are described by the dielectric function, which gives access to the frequency-dependent electrical conductivity, absorption, emission and scattering of radiation, charged particles stopping and further macroscopic properties. Different approaches to the dielectric function and the related dynamical collision frequency are compared in a wide frequency range. The high-frequency limit describing inverse bremsstrahlung and the low-frequency limit of the dc conductivity are considered. Sum rules and Kramers-Kronig relation are checked for the generalized linear response theory and the standard approach following kinetic theory. The results are discussed in application to aluminum, xenon and argon plasmas.

25 pages, 10 figures

References in corpus (4)

• Transport and optical properties of warm dense aluminum in the two-temperature regime: Ab initio calculation and semiempirical approximation
• Extended Drude model and role of interband transitions in the mid-infrared spectra of pnictides
• Low-frequency plasma conductivity in the average-atom approximation
• Dielectric function of a collisional plasma for arbitrary ionic charge

Cited by in corpus (13)

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• Ab Initio Path Integral Monte Carlo Approach to the Static and Dynamic Density Response of the Uniform Electron Gas
• Dynamic properties of the warm dense electron gas: an ab initio path integral Monte Carlo approach
• Structural characteristics of strongly coupled ions in a dense quantum plasma
• Permutation Blocking Path Integral Monte Carlo approach to the Static Density Response of the Warm Dense Electron Gas
• Finite-size effects in the reconstruction of dynamic properties from ab initio path integral Monte-Carlo simulations
• Screening of a test charge in a free-electron gas at warm dense matter and dense non-ideal plasma conditions
• A Model of Electron Transport in Dense Plasmas Spanning Temperature Regimes
• Ab initio path integral Monte Carlo simulation of the Uniform Electron Gas in the High Energy Density Regime
• Exchange-correlation effect in the charge response of a warm dense electron gas
• Equilibrium radiation in a plasma medium with spatial and frequency dispersion