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arXiv · 2009.09180

Screening of a test charge in a free-electron gas at warm dense matter and dense non-ideal plasma conditions

Zhandos Moldabekov·Tobias Dornheim·Michael Bonitz
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Abstract

The screening of a test charge by partially degenerate non-ideal free electrons at conditions related to warm dense matter and dense plasmas is investigated using linear response theory and the local field correction based on ab inito Quantum Monte-Carlo simulations data. The analysis of the obtained results is performed by comparing to the random phase approximation and the Singwi-Tosi-Land-Sjölander approximation. The applicability of the long-wavelength approximation for the description of screening is investigated. The impact of electronic exchange-correlations effects on structural properties and the applicability of the screened potential from linear response theory for the simulation of the dynamics of ions are discussed.

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Zhandos Moldabekov, Tobias Dornheim, Michael Bonitz. 2020-09-19. Screening of a test charge in a free-electron gas at warm dense matter and dense non-ideal plasma conditions. https://doi.org/10.1002/ctpp.202000176

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