Title

Enhanced Diffusion and Ordering of Self-Propelled Rods

Author(s)/Creator(s)

Aparna Baskaran, Syracuse University
M. Cristina Marchetti, Syracuse UniversityFollow

Document Type

Article

Date

6-27-2008

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

Recommended Citation

arXiv:0806.4559v1

Source

harvested from arXiv.org

Creative Commons License

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