Document Type

Article

Date

6-27-2008

Embargo Period

10-18-2011

Keywords

condensed matter, soft condensed matter

Language

English

Disciplines

Physics

Description/Abstract

Starting from a minimal physical model of self propelled hard rods on a substrate in two dimensions, we derive a modified Smoluchowski equation for the system. Self -propulsion enhances longitudinal diffusion and modifies the mean field excluded volume interaction. From the Smoluchowski equation we obtain hydrodynamic equations for rod concentration, polarization and nematic order parameter. New results at large scales are a lowering of the density of the isotropic-nematic transition and a strong enhancement of boundary effects in confined self-propelled systems.

Additional Information

This manuscript is from arXiv.org, to discover more see http://arxiv.org/abs/0806.4559

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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