title: Density functional theory for Baxter's sticky hard spheres in confinement.
abstract: It has recently been shown that a free energy for Baxter's sticky hard-sphere fluid is uniquely defined within the framework of fundamental measure theory (FMT) for the inhomogeneous hard-sphere fluid, provided that it obeys scaled-particle theory and the Percus-Yevick (PY) result for the direct correlation function [H. Hansen-Goos and J. S. Wettlaufer, J. Chem. Phys. 134, 014506 (2011)]. Here, combining FMT weighted densities with a new vectorial weighted density, we regularize the divergences of the associated strongly confined limit. The free energy that emerges is exact in the zero-dimensional limit, leaves the underlying equation of state unaffected, and yields a direct correlation function distinct from that of PY. Comparison with simulation data for both the bulk pair-correlation function and the density profiles in confinement shows that the new theory is significantly more accurate than the PY-based results.
authors.affiliation: Yale University, New Haven, Connecticut 06520, USA.
authors.forename: Hendrik
authors.initials: H
authors.lastname: Hansen-Goos
authors.forename: Mark A
authors.initials: MA
authors.lastname: Miller
authors.forename: J S
authors.initials: JS
authors.lastname: Wettlaufer