Fluid interfaces as treated by density functional theory

Ronald Lovett and Marc Baus

Physica A: Statistical Mechanics and its Applications, 1993, vol. 194, issue 1, 93-104

Abstract: The stress tensor has been touted for over forty years as providing the most sophisticated description of fluid interfaces. We review the physical interpretation of the stress tensor, the questions which the stress tensor is purported to answer, and the problems which make the standard usage of questionable value. The same physical properties are then formulated in the language of density functional theory. We show that the formulation is straightforward, that the physical ambiguities of the stress tensor approach can be avoided, and that the identification of molecular level expressions for observables is equally straightforward.

Date: 1993
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:194:y:1993:i:1:p:93-104

DOI: 10.1016/0378-4371(93)90344-4

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