We present a first-principles density-functional study of the free surface of a Bose Lennard-Jones (BLJ) fluid at zero temperature. Following the Weeks-Chandler-Andersen perturbation scheme for classical LJ fluids, we treat the repulsive part of the BLJ by a Bose hard-sphere (BHS) reference system, where the equivalent BHS diameter is taken from the approach of Kalos, Levesque, and Verlet [Phys. Rev. A 9, 2178 (1974)]. When the de BoerMichels parameters of He4 are chosen for the BLJ fluid, the calculated surface properties are in good agreement with those from experiment and Monte Carlo simulation.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics