title: Equilibrium time-correlation functions for one-dimensional hard-point systems.
abstract: As recently proposed, the long-time behavior of equilibrium time-correlation functions for one-dimensional systems are expected to be captured by a nonlinear extension of fluctuating hydrodynamics. We outline the predictions from the theory aimed at the comparison with molecular dynamics. We report on numerical simulations of a fluid with a hard-shoulder potential and of a hard-point gas with alternating masses. These models have in common that the collision time is zero and their dynamics amounts to iterating collision by collision. The theory is well confirmed, with the twist that the nonuniversal coefficients are still changing at longest accessible times.
authors.affiliation: Zentrum Mathematik, Technische Universität München, Boltzmannstraße 3, 85747 Garching bei München, Germany.
authors.forename: Christian B
authors.initials: CB
authors.lastname: Mendl
authors.affiliation: Institute for Advanced Study, Einstein Drive, Princeton, New Jersey 08540, USA and Zentrum Mathematik and Physik Department, Technische Universität München, Boltzmannstraße 3, 85747 Garching bei München, Germany.
authors.forename: Herbert
authors.initials: H
authors.lastname: Spohn
mesh_terms: D004058:Diffusion; D005740:Gases; D057446:Hydrodynamics; D056004:Molecular Dynamics Simulation; D017711:Nonlinear Dynamics; D013997:Time Factors
chemical_list: D005740:Gases