The second and third virial coefficient of a gas of nonspherical molecules of arbitrary symmetry have been calculated for a set of force parameters which has been found suitable to explain the dilute gas viscosity data. The influence of a large number of orientation dependent pair- and...

We discuss fluctuation theorems for dielectrics from a unified point of view. A simple susceptibility theorem is proven for a uniform dielectric contained in a vessel with ideally conducting walls of arbitrary shape. Also we derive a theorem for systems with periodic boundary conditions. The...

The Faddeev equations for the three-magnon T-matrix of the Heisenberg ferromagnet with nearest neighbour interactions are derived for the cubic lattice in arbitrary dimensions. The extreme case of spin 12 is considered and the kinematical restriction, that only one spin deviation per site is...

The exact nonlinear driven response of a one-dimensional gas of hard rods to a time dependent uniform external field is obtained in terms of the single particle Green's function. Limiting cases of very large and very small field are examined and, for the latter, comparison is made between the...

From the empirical fact that at sufficiently low temperatures most substances crystallize one may be led to the assumption that for (infinitely) large systems of interacting particles the configuration with minimum potential energy per particle will be a periodic structure. Plausible as this...

Rae and Davidson have found a striking connection between the averaging method generalised by Kruskal and the diagram technique used by the Brussels school in statistical mechanics. They have considered conservative systems whose evolution is governed by the Liouville equation. In this paper we...

A random-walk formalism is applied to some general Ornstein-Zernike lattice systems to obtain information as to the asymptotic form of the total correlation function. Calculations in terms of the Percus-Yevick approximation are then presented for certain lattice gases with interactions extending...

A variational method is presented for determining n-site cluster probabilities for the short-range ordered state in binary systems. The derived frequency distribution is the most probable one that is consistent with given pair probabilities and with the most probable frequency distribution for...

We compare two model descriptions of transport in a material with traps. We establish the equivalence between the n-state trapping model where equilibrium initial conditions are used, and the continuous-time random walk description where a distinct first-waiting-time distribution is introduced....