Abstract
The mean spherical approximation for the internal energyU of the classical one-component plasma is solved exactly in the limit γ ≫ 1, where γ is the usual Coulomb coupling parameter. The result\({{\beta U} \mathord{\left/ {\vphantom {{\beta U} {N = - \tfrac{9}{{10}}\Gamma + {\raise0.5ex\hbox{$\scriptstyle 1$}\kern-0.1em/\kern-0.15em\lower0.25ex\hbox{$\scriptstyle 6$}}\sqrt 3 \Gamma ^{{\raise0.5ex\hbox{$\scriptstyle 1$}\kern-0.1em/\kern-0.15em\lower0.25ex\hbox{$\scriptstyle 2$}}} + \Gamma ^{{1 \mathord{\left/ {\vphantom {1 6}} \right. \kern-\nulldelimiterspace} 6}} /15\sqrt 3 2^{{1 \mathord{\left/ {\vphantom {1 3}} \right. \kern-\nulldelimiterspace} 3}} + 0(\Gamma ^{ - {1 \mathord{\left/ {\vphantom {1 6}} \right. \kern-\nulldelimiterspace} 6}} )}}} \right. \kern-\nulldelimiterspace} {N = - \tfrac{9}{{10}}\Gamma + {\raise0.5ex\hbox{$\scriptstyle 1$}\kern-0.1em/\kern-0.15em\lower0.25ex\hbox{$\scriptstyle 6$}}\sqrt 3 \Gamma ^{{\raise0.5ex\hbox{$\scriptstyle 1$}\kern-0.1em/\kern-0.15em\lower0.25ex\hbox{$\scriptstyle 2$}}} + \Gamma ^{{1 \mathord{\left/ {\vphantom {1 6}} \right. \kern-\nulldelimiterspace} 6}} /15\sqrt 3 2^{{1 \mathord{\left/ {\vphantom {1 3}} \right. \kern-\nulldelimiterspace} 3}} + 0(\Gamma ^{ - {1 \mathord{\left/ {\vphantom {1 6}} \right. \kern-\nulldelimiterspace} 6}} )}}\) is consistent with DeWitt's empirical analysis of the mean spherical approximation.
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Supported in part by NSF Grant DMR 10306-01.
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Gould, H., Palmer, R.G. & Estévez, G.A. Asymptotic form of the mean spherical approximation for the internal energy of the classical one-component plasma. J Stat Phys 21, 55–64 (1979). https://doi.org/10.1007/BF01011481
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DOI: https://doi.org/10.1007/BF01011481