%0 Journal Article
%T Virial expansion of the electrical conductivity of hydrogen plasmas
%+ Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE)
%A Röpke, G.
%A Schörner, M.
%A Redmer, R.
%A Bethkenhagen, M.
%< avec comité de lecture
%@ 2470-0045
%J Physical Review E
%I American Physical Society (APS)
%V 104
%8 2021
%D 2021
%Z 2109.11293
%Z 2021PhRvE.104d5204R
%R 10.1103/PhysRevE.104.045204
%K Physics - Plasma Physics
%Z Sciences of the Universe [physics]Journal articles
%X The low-density limit of the electrical conductivity σ (n ,T ) of hydrogen as the simplest ionic plasma is presented as a function of the temperature T and mass density n in the form of a virial expansion of the resistivity. Quantum statistical methods yield exact values for the lowest virial coefficients which serve as a benchmark for analytical approaches to the electrical conductivity as well as for numerical results obtained from density functional theory-based molecular dynamics simulations (DFT-MD) or path-integral Monte Carlo simulations. While these simulations are well suited to calculate σ (n ,T ) in a wide range of density and temperature, in particular, for the warm dense matter region, they become computationally expensive in the low-density limit, and virial expansions can be utilized to balance this drawback. We present new results of DFT-MD simulations in that regime and discuss the account of electron-electron collisions by comparison with the virial expansion.
%G English
%L insu-03710144
%U https://insu.hal.science/insu-03710144
%~ UNIV-ST-ETIENNE
%~ ENS-LYON
%~ INSU
%~ CNRS
%~ UNIV-LYON1
%~ LGL-TPE
%~ UDL
%~ UNIV-LYON