The free energy density functional format is increasingly used to represent the structure of
non-uniform fluids in thermal equilibrium. This representation can often be simplified and …

The density functional format for classical fluids in thermal equilibrium has the joint virtues of
simplicity and reasonable accuracy, but the drawback that ignorance of its basic structure …

Although formally exact expressions can be written for thermodynamic potentials of many‐
particle systems in external fields, Legendre transformation to particle density as the …

The cornerstone of density functional theory of inhomogeneous classical fluids [1] is based
on a variational principle as first derived in 1964 by Kohn and Hohenberg [2] for zero …

Classical density functional theory for finite temperatures is usually formulated in the grand-
canonical ensemble where arbitrary variations of the local density are possible. However, in …

We propose a new and general method for deriving exact density functionals in one
dimension for lattice gases with finite-range pairwise interactions. Corresponding continuum …

We consider the weighted density approximation of the density functional description of
systems in thermal equilibrium. We show that knowledge of the intermolecular potential puts …

The proper description of physical matter depends upon both the circumstances under
which the matter is to be found and the degree of resolution required for any use to which …

Lattice gas based models are usually discussed in terms of spin averages instead of
distribution functions. As they are very useful in the study of adsorption phenomena, a …

We put forward a general procedure to obtain an approximate free-energy density functional
for any hard-core lattice gas, regardless of the shape of the particles, the underlying lattice …