Abstract

A generalized mean-field theory, incorporating the "classical" mean-field theories but having a richer structure, is formulated. Thermodynamic consistency is established for this generalized theory. As an application of the formalism, a treatment of coupled orientational and translational order-disorder transitions is presented, resulting in self-consistency equations requiring no numerical integration but exhibiting the essential features of the isotropic-nematic-smectic transitions in liquid crystals.

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