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Generalized compressibility equation for inhomogeneous fluids at equilibrium
Phys. Rev. E 48, 1819 – Published 1 September, 1993
DOI: https://doi.org/10.1103/PhysRevE.48.1819
Abstract
A general relation is derived between the pressure tensor in an equilibrated inhomogeneous fluid and the direct correlation function. This relation reduces to the usual compressibility equation for a homogeneous fluid and is to be considered as the generalized compressibility equation. The equation provides a starting point for integral-equation theories and is useful in the rigorous kinetic theory of inhomogeneous fluids.
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