title: Is there a third order phase transition for supercritical fluids?
abstract: We prove that according to Molecular Dynamics (MD) simulations of liquid mixtures of Lennard-Jones (L-J) particles, there is no third order phase transition in the supercritical regime beyond Andrew's critical point. This result is in open contrast with recent theoretical studies and experiments which instead suggest not only its existence but also its universality regarding the chemical nature of the fluid. We argue that our results are solid enough to go beyond the limitations of MD and the generic character of L-J models, thus suggesting a rather smooth liquid-vapor thermodynamic behavior of fluids in supercritical regime.
authors.affiliation: LMAM and School of Mathematical Sciences, Peking University, Beijing, People's Republic of China.
authors.forename: Jinglong
authors.initials: J
authors.lastname: Zhu
authors.affiliation: LMAM and School of Mathematical Sciences, Peking University, Beijing, People's Republic of China.
authors.forename: Pingwen
authors.initials: P
authors.lastname: Zhang
authors.affiliation: Institute for Mathematics, Freie Universität Berlin, Germany.
authors.forename: Han
authors.initials: H
authors.lastname: Wang
authors.affiliation: Institute for Mathematics, Freie Universität Berlin, Germany.
authors.forename: Luigi Delle
authors.initials: LD
authors.lastname: Site