Many-body and quantum effects in the surface tension and surface energy of liquid neon and argon using the Fowler's approximation

► Fowler's expression for calculation of the surface tension and energy has been used. ► Quantum corrections considered using the FH and WK approaches for liquid neon. ► Two simple three-body potentials used for a two-body potential of argon. ► Improvement in the results obtained by including the quantum and three-body effects.