# Molecular fields and statistical field theory of fluids: Application to interface phenomena.

@article{Brilliantov2020MolecularFA, title={Molecular fields and statistical field theory of fluids: Application to interface phenomena.}, author={Nikolai V. Brilliantov and J. Miguel Rub{\'i} and Yu A Budkov}, journal={Physical review. E}, year={2020}, volume={101 4-1}, pages={ 042135 } }

Using the integral transformation, the field-theoretical Hamiltonian of the statistical field theory of fluids is obtained along with the microscopic expressions for the coefficients of the Hamiltonian. Applying this approach to the liquid-vapor interface, we derive an explicit analytical expression for the surface tension in terms of temperature, density, and parameters of the intermolecular potential. We also demonstrate that a clear physical interpretation may be given to the formal…

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