Abstract

The generalized effective liquid approximation (GELA) to the density functional theory of classical nonuniform systems reproduces all the formal properties of the free energy and requires only the direct correlation function of the uniform system as input. In the case of the freezing of hard spheres very accurate free energies, pressures and fluid-solid coexistence data can be obtained from the GELA. The theory predicts, besides the equilibrium FCC solid, metastable BCC and SC phases also.

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