Curtin-Ashcroft theory

The density functional theories are also accurate for the density profiles of fused-sphere chains. Figures 4(a) and 4(b) compare the theory of Yethiraj [39] (which is a DFT with the Curtin-Ashcroft weighting function) to Monte Carlo simulations of fused-hard-sphere chains at hard walls for N = 4 and 16, respectively. For both chain lengths the theory is in quantitative agreement with the simulation results and appears to get more accurate as the chain length is increased. Similarly good results were also found by SCMC who compared... 

Curtin, W. A., and Ashcroft, N.W. Weighted-density-functional theory of inhomogeneous liquids and the freezing transition. 1985. Phys. Rev. A Atom. Mol. Opt. Phys. 32 2909. 

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