Ground State of Two-Dimensional Liquid Helium

Abstract
In the interest of understanding the nature and properties of physically adsorbed helium monolayers in the mobile limit, we study the ground state of a two-dimensional helium liquid, using integral-equation techniques which have been thoroughly tested in connection with bulk helium. Our results are compared to those of computer experiments by Hyman and by Campbell and Schick, and to actual experimental data obtained by Dash and co-workers.