A molecular dynamics simulation of liquid-vapor interfaces in two dimensions

We report a simulation of a two-dimensional system of Lennard-Jones particles, carried out on a special purpose molecular dynamics hardware processor. We study the behaviour of the liquid-vapor interface in two dimensions. The interface width is observed to diverge as a function of the interface length in accordance with capillary wave theory. Also the transverse structure function is seen to diverge for small wavenumbers, which indicates the development of long wavelength correlations along the interface.