Random Diffusion Model with Structure Corrections
Soft Condensed Matter
2015-03-13 v2
Abstract
The random diffusion model is a continuum model for a conserved scalar density field driven by diffusive dynamics where the bare diffusion coefficient is density dependent. We generalize the model from one with a sharp wavenumber cutoff to one with a more natural large-wavenumber cutoff. We investigate whether the features seen previously -- namely a slowing down of the system and the development of a prepeak in the dynamic structure factor at a wavenumber below the first structure peak -- survive in this model. A method for extracting information about a hidden prepeak in experimental data is presented.
Cite
@article{arxiv.0911.3917,
title = {Random Diffusion Model with Structure Corrections},
author = {David D. McCowan and Gene F. Mazenko},
journal= {arXiv preprint arXiv:0911.3917},
year = {2015}
}
Comments
13 pages, 8 figures