Deterministic endless collective evolvement in active nematics

2010/11/24 by Xia-qing Shi, Shi, Xia-qing, Yu‐qiang Ma +2 · 2 citations
Neuroscience · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Micro and Nano Robotics #Photoreceptor and optogenetics research #cond-mat.soft #cond-mat.stat-mech

paper · pdf · doi:10.48550/arxiv.1011.5408

5 pages, 3 figures

arxiv created 2010/11/24 · arxiv updated 2010/11/25

Abstract

We propose a simple deterministic dynamic equation and reveal the mechanism of large-scale endless evolvement of spatial density inhomogeneity in active nematic. We determine the phase regions analytically. The interplay of density, magnitude of nematic order, and nematic director is crucial for the long-wave-length instability and the emergence of seemingly fluctuated collective motions. Ordered nematic domains can absorb particles, grow and divide endlessly. The present finding extends our understanding of the large-scale and seemingly fluctuated organization in active fluids.

Cited by

• Mesoscopic theory for fluctuating active nematics
• Aspects of the density field in an active nematic

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