Potential of mean force for electrical conductivity of dense plasmas

Starrett, C. E.

doi:10.1016/j.hedp.2017.09.003

Potential of mean force for electrical conductivity of dense plasmas

Journal Article · Thu Sep 28 00:00:00 EDT 2017 · High Energy Density Physics

DOI:https://doi.org/10.1016/j.hedp.2017.09.003· OSTI ID:1396133

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Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

The electrical conductivity in dense plasmas can be calculated with the relaxation-time approximation provided that the interaction potential between the scattering electron and the ion is known. To date there has been considerable uncertainty as to the best way to define this interaction potential so that it correctly includes the effects of ionic structure, screening by electrons and partial ionization. The current approximations lead to significantly different results with varying levels of agreement when compared to bench-mark calculations and experiments. Here, we present a new way to define this potential, drawing on ideas from classical fluid theory to define a potential of mean force. This new potential results in significantly improved agreement with experiments and bench-mark calculations, and includes all the aforementioned physics self-consistently.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1396133

Alternate ID(s):: OSTI ID: 1549230

Report Number(s):: LA-UR-17-26365

Journal Information:: High Energy Density Physics, Journal Name: High Energy Density Physics Vol. 25; ISSN 1574-1818

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Model for the electrical conductivity in dense plasma mixtures Starrett, C. E.; Shaffer, N. R.; Saumon, D. High Energy Density Physics, Vol. 36 https://doi.org/10.1016/j.hedp.2020.100752	journal	August 2020
Coulomb log for conductivity of dense plasmas Starrett, C. E. Physics of Plasmas, Vol. 25, Issue 9 https://doi.org/10.1063/1.5053124	journal	September 2018
Theory of the electron-ion temperature relaxation rate spanning the hot solid metals and plasma phases Daligault, Jérôme; Simoni, Jacopo Physical Review E, Vol. 100, Issue 4 https://doi.org/10.1103/physreve.100.043201	journal	October 2019
Correlations between conduction electrons in dense plasmas Shaffer, Nathaniel R.; Starrett, Charles E. Physical Review E, Vol. 101, Issue 1 https://doi.org/10.1103/physreve.101.013208	journal	January 2020

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