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Density functional for the Widom-Rowlinson model M. Schmidt, Phys. Rev. E 63, 010101(R) (2001). Locate in [bare] [illustrated] list. Get [full paper] as pdf. Extract. We present a density functional theory for the m-component Widom-Rowlinson model: a mixture of spherical particles where the unlike species interact with a hard-core potential and the interactions between like species vanish. It predicts the fluid structure in good agreement with simulations and yields a continuous demixing phase transition for m>=2. [more]  Read the [full paper] as pdf. |
Basic model fluids
Density functionals were constructed for hard spheres [5] [6], penetrable spheres that interact with a step-function pair potential [7] (see [14] for more discussion), the Asakura-Oosawa-Vrij model of colloid-polymer mixtures [11], the Widom-Rowlinson model [17], and non-additive hard sphere mixtures [53].[more]