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Phys Rev Lett. 2013 Sep 13;111(11):118101. Epub 2013 Sep 10.

Velocity correlations in an active nematic.

Author information

1
The Rudolf Peierls Centre for Theoretical Physics, 1 Keble Road, Oxford OX1 3NP, United Kingdom.

Abstract

The flow properties of a continuum model for an active nematic are studied and compared with recent experiments on suspensions of microtubule bundles and molecular motors. The velocity correlation length is found to be independent of the strength of the activity while the characteristic velocity scale increases monotonically as the activity is increased, both in agreement with the experimental observations. We interpret our results in terms of the creation and annihilation dynamics of a gas of topological defects.

PMID:
24074119
DOI:
10.1103/PhysRevLett.111.118101
[Indexed for MEDLINE]

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