Surface tension of liquid inert gases

The surface tension of liquid inert gases, including ³He and ⁴He helium isotopes, has been calculated using a method based on determining the work that must be done to remove an atom from the liquid surface. This approach provides quite satisfactory agreement with the available experimental data. Calculations of the surface tension in liquid helium also take into account the quantum zero-point oscillations of atoms. The role of the dimensional effect in the surface tension for nanodroplets is discussed.