2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/107087Binding energies and density profiles of two-dimensional systems of liquid He-4 with different geometries are studied by means of a zero-range density functional adjusted to reproduce the line tension obtained in a previous diffusion Monte Carlo calculation (lambda_{DMC}=0.121 K/A). It is shown that this density functional provides accurate results for the binding energy of large clusters with a reasonable computational effort.RevTeX4, 11 pages + 2 tables + 6 figuresOther Condensed Mattertext