Simple model of active particles

Yann-Edwin Keta, University of British Columbia, 2018

This research project was started at the University of British Columbia, under the supervision of Joerg Rottler, during the Spring 2018. It focuses on a model system of polydisperse active Brownian disks with purely repulsive interparticle harmonic potential, inspired by Fily et al., 2014. This model system displays motility-induced phase separation and shows cooperative motion correlated over large distances and periods of time, which we aim to characterise.

This wiki contains presentations of our model and methods, as well as figures, images, videos and remarks about our results.

It can be read via this project GitHub page, or by cloning this repository

git clone https://github.com/yketa/UBC_2018_Wiki

and opening the index.html file.

xdg-open UBC_2018_Wiki/index.html  # on Linux
open UBC_2018_Wiki/index.html      # on Mac OS X

All the scripts developed during this project, for simulation and analysis purposes, are available at the respository yketa/active_particles.

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Associated publication

"Cooperative motion and shear strain correlations in dense 2D systems of self-propelled soft disks", Yann-Edwin Keta and Jörg Rottler, EPL, 125 (2019) 58004. (doi: 10.1209/0295-5075/125/58004)

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