Dynamic decay and superadiabatic forces in the van Hove dynamics of bulk hard sphere fluids
Treffenstaedt LL, Schindler T, Schmidt M (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 12
Journal Issue: 4
DOI: 10.21468/SciPostPhys.12.4.133
Abstract
We study the dynamical decay of the van Hove function of Brownian hard spheres using event-driven Brownian dynamics simulations and dynamic test particle theory. Relevant decays mechanisms include deconfinement of the self particle, decay of correlation shells, and shell drift. Comparison to results for the Lennard-Jones system indicates the generality of these mechanisms for dense overdamped liquids. We use dynamical density functional theory on the basis of the Rosenfeld functional with self interaction correction. Superadiabatic forces are analysed using a recent power functional approximation. The power functional yields a modified Einstein long-time self diffusion coefficient in good agreement with simulation data.
Authors with CRIS profile
Involved external institutions
Germany (DE)How to cite
APA:
Treffenstaedt, L.L., Schindler, T., & Schmidt, M. (2022). Dynamic decay and superadiabatic forces in the van Hove dynamics of bulk hard sphere fluids. SciPost Physics, 12(4). https://dx.doi.org/10.21468/SciPostPhys.12.4.133
MLA:
Treffenstaedt, Lucas L., Thomas Schindler, and Matthias Schmidt. "Dynamic decay and superadiabatic forces in the van Hove dynamics of bulk hard sphere fluids." SciPost Physics 12.4 (2022).
BibTeX: Download