Minimal model for active nematics: quasi-long-range order and giant fluctuations

Preprint

3 March 2006

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0603080

Abstract

We propose a minimal microscopic model for active nematic particles similar in spirit to the Vicsek model for self-propelled polar particles. In two dimensions, we show that this model exhibits a Kosterlitz-Thouless-like transition to quasi-long-range orientational order and that in this non-equilibrium context, the ordered phase is characterized by giant density fluctuations, in agreement with the predictions of Ramaswamy {\it et al.} [Europhys. Lett. {\bf 62}, 196 (2003)].

Keywords

GIANT FLUCTUATIONS
QUASI LONG RANGE
ACTIVE NEMATIC
MINIMAL MODEL
RANGE ORDER
PARTICLES
PROPELLED
NEMATICS

All Related Versions

Version 1, 2006-03-03, ArXiv
Published version: Physical Review Letters, 96 (18), 180602.

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