Static Structure of Active Brownian Hard Disks
Statistical Mechanics
2017-12-27 v1
Abstract
We explore the changes in static structure of a two-dimensional system of active Brownian particles (ABP) with hard-disk interactions, using event-driven Brownian dynamics simulations. In particular, the effect of the self-propulsion velocity and the rotational diffusivity on the orientationally-averaged fluid structure factor is discussed. Typically activity increases structural ordering and generates a structure factor peak at zero wave vector which is a precursor of motility-induced phase separation. Our results provide reference data to test future statistical theories for the fluid structure of active Brownian systems.
Keywords
Cite
@article{arxiv.1712.08937,
title = {Static Structure of Active Brownian Hard Disks},
author = {Nadine de Macedo Biniossek and Hartmut Löwen and Thomas Voigtmann and Frank Smallenburg},
journal= {arXiv preprint arXiv:1712.08937},
year = {2017}
}
Comments
Published in Journal of Physics: Condensed Matter. This is the pre-review version