title: Role of three-body interactions in formation of bulk viscosity in liquid argon.
abstract: With the aim of locating the origin of discrepancy between experimental and computer simulation results on bulk viscosity of liquid argon, a molecular dynamic simulation of argon interacting via ab initio pair potential and triple-dipole three-body potential has been undertaken. Bulk viscosity, obtained using Green-Kubo formula, is different from the values obtained from modeling argon using Lennard-Jones potential, the former being closer to the experimental data. The conclusion is made that many-body inter-atomic interaction plays a significant role in formation of bulk viscosity.
authors.affiliation: Department of Mathematics, University of Leicester, Leicester LE1 7RH, United Kingdom.
authors.forename: S V
authors.initials: SV
authors.lastname: Lishchuk