Maier–Saupe nematogenic fluid interacting with an isotropic and an anisotropic Yukawa potentials: field theory description

摘要: We adopt a field-theoretical approach to study equilibrium properties of homogeneous Maier–Saupe nematogenic fluid interacting with an isotropic and anisotropic Yukawa potentials. In the mean field approximation, we retrieve standard theory for nematic liquid crystals. Beyond show that repulsive potential plays important role in description phase. Gaussian approximation analytical expressions correlation functions, free energy, pressure, elasticity constant are derived. establish simple condition on parameters functions thermodynamic be defined Subsequently, find corrections single-particle distribution function order parameter due fluctuations.