Surface tension of liquids near the critical point

Details Surface tension of liquids near the critical point Surface tension of liquids near the critical point

2002-01-18

arxiv.org/abs/cond-mat/0201340v1

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 1 figure

Scientific paper

A simple analytical microscopic expression for the surface tension of liquids $\gamma$ is obtained which is in a good agreement with available data of numerical experiments. We apply the integral transformation that maps the fluid Hamiltonian onto the field-theoretical Hamiltonian and show that the order parameter of the effective Hamiltonian corresponds to the one-body potential in the fluid. Revealing the physical meaning of the order parameter allows calculation of $\gamma$.

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