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Density-functional theory for soft potentials by dimensional crossover M. Schmidt, Phys. Rev. E 60, R6291 (1999). Locate in [bare] [illustrated] list. Get [full paper] as pdf. Extract. A density-functional theory for particles interacting via a soft pair potential is derived, based on the zero-dimensional cavity limit and the virial expansion. The structure and thermodynamics of the homogeneous fluid are an output. The theory, when supplemented by a rescaling procedure, reproduces the features of the bulk pair correlations of a model of star polymers. [more]  Read the [full paper] as pdf. |
DFT for soft potentials
Based on the hard sphere case [5] [6], a density functional theory (DFT) for soft (i.e. continuously varying as a function of interparticle distance) potentials was obtained by considering dimensional crossover [8], and subsequently extended to mixtures [10]. Applications concern the liquid structure of model fluids [13], and structure and freezing of star polymer solutions [15] (see also [16].)[more]