A generalized Coulomb logarithm for strongly coupled plasmas

Details A generalized Coulomb logarithm for strongly coupled plasmas A generalized Coulomb logarithm for strongly coupled plasmas

2011-09-22

arxiv.org/abs/1109.4826v2

Physics

Plasma Physics

5 pages, 2 figures, submitted to Physics of Plasmas

Scientific paper

Transport coefficients for Coulomb collision processes, e.g., friction, energy exchange, and resistivity, are calculated for Debye-screened (Yukawa) plasmas including correlation effects within the binary collision approximation. A generalized Coulomb logarithm, $\Xi(\Lambda)$, is required, which asymptotes to $\ln \Lambda$ in the weakly coupled limit, but is significantly modified when $\Lambda \lesssim 10^2$ due to large angle collisions. In the regime $10^{-2} \lesssim \Lambda \lesssim 10^2$, $\Xi$ can be substantially larger for attractive collisions than repulsive.

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