Document Type

Article

Date

2-1-2008

Embargo Period

10-18-2011

Keywords

condensed matter, soft condensed matter, statistical mechanics

Language

English

Disciplines

Physics

Description/Abstract

Motivated by recent simulations and by experiments on aggregation of gliding bacteria, we study a model of the collective dynamics of self-propelled hard rods on a substrate in two dimensions. The rods have finite size, interact via excluded volume and their dynamics is overdamped by the interaction with the substrate. Starting from a microscopic model with non-thermal noise sources, a continuum description of the system is derived. The hydrodynamic equations are then used to characterize the possible steady states of the systems and their stability as a function of the particles packing fraction and the speed of self propulsion.

Additional Information

This article is from arXiv.org, for more information see http://arxiv.org/abs/0708.2401

Source

harvested from arXiv.org

Creative Commons License

Creative Commons Attribution 3.0 License
This work is licensed under a Creative Commons Attribution 3.0 License.

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Physics Commons

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