Benchmark of Simplified Formulations for the Electrical Conductivity of Non‐Ideal Plasmas

Abstract

We discuss simplified formulations for the electrical conductivity [1] and compare them with experimental results of various expanded metals recently published [2]. We use formulations designed for fully ionized hydrogen in a broader range of non‐fully ionized materials of various atomic number through the use of an effective coupling parameter based on estimations of the ionization. The ionizations are deduced from average‐atom calculations and compared with faster Thomas‐Fermi‐Dirac estimations. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Asymptotic regimes for the electrical and thermal conductivities in dense plasmas

“…[2][3][4][5] These formulas use the theoretical formalisms of the ab initio approaches based on quantum molecular dynamics (QMD) simulations [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] or average-atom models. [22][23][24][25][26][27][28][29] Comparisons with experiment and QMD simulations were promising. Since they are analytical, these simple formulas can be used to study various asymptotic regimes, such as the non-degenerate and the degenerate situations.…”