Abstract The universality principle of the free energy density functional and the ‘test particle' trick by Percus are combined to construct the approximate free energy density functional or its functional derivative. Information about the bulk fluid radial distribution function is integrated into the density functional approximation directly for the first time in the present methodology. The physical foundation of the present methodology also applies to the quantum density functional theory.
Received: 23 December 2001
Revised: 26 May 2002
Accepted manuscript online:
Fund: Project supported by the Natural Science Foundation of Hunan Province, China (Grant No 01JJY3007) and by the Natural Science Foundation of Education Department of Hunan Province, China (Grant No 01C338).
Cite this article:
Zhou Shi-Qi (周世琦), Zhang Xiao-Qi (张晓琪) Universality principle and the development of classical density functional theory 2002 Chinese Physics 11 1051
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