Physics – Plasma Physics
Scientific paper
Jun 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983phrva..27.3241i&link_type=abstract
Physical Review A - General Physics, 3rd Series (ISSN 0556-2791), vol. 27, June 1983, p. 3241-3250. Sponsorship: Ministry of Edu
Physics
Plasma Physics
58
Approximation, Dense Plasmas, Plasma Physics, Accuracy, Correlation, Density Distribution, Monte Carlo Method
Scientific paper
A new systematic scheme of improvement on the hypernetted-chain (HNC) equation is developed within a self-contained framework of plasma theory. The theory is presented in terms of a one-component plasma system, but is equally applicable to many-component plasmas. The problem is formulated using the density-functional method, with the bridge function being expressed in terms of the correlation functions. The nature of the HNC approximation is elucidated through analysis of the correlation functions, and two schemes of improvement over the HNC approximation are proposed. The validity and accuracy of the two schemes are examined by numerical comparison with exact Monte Carlo results as well as with the original HNC results; the points of comparison are the radial distribution function, the thermal part of the internal energy, the screening potential, and the compressibility sum rule.
Ichimaru Setsuo
Iyetomi Hiroshi
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