Journal article

Instabilities and topological defects in active nematics

Abstract:: We study a continuum model of an extensile active nematic to show that mesoscale turbulence develops in two stages: i) ordered regions undergo an intrinsic hydrodynamic instability generating walls, lines of strong bend deformations; ii) the walls relax by forming oppositely charged pairs of defects. Both creation and annihilation of defect pairs reinstate nematic regions which undergo further instabilities, leading to a dynamic steady state. We compare this with the development of active turbulence in a contractile active nematic. © Copyright EPLA, 2013.

Publication status:: Published

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APA Style

Thampi, S., Golestanian, R., & Yeomans, J. (2014). Instabilities and topological defects in active nematics. EPL, 105(1), 18001–18001.

MLA Style

Thampi, S, et al. “Instabilities and Topological Defects in Active Nematics.” EPL, vol. 105, no. 1, 2014, pp. 18001–01.

Chicago Style

Thampi, S, R Golestanian, and J Yeomans. 2014. “Instabilities and Topological Defects in Active Nematics.” EPL 105 (1): 18001–.
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Publisher copy:: 10.1209/0295-5075/105/18001

Authors

+ Thampi, S More by this author

Role:: Author

+ Golestanian, R More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Theoretical Physics
Role:: Author

+ Yeomans, J More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Theoretical Physics
Role:: Author

Journal:: EPL More from this journal
Volume:: 105
Issue:: 1
Pages:: 18001-18001
Publication date:: 2014-01-01
DOI:: 10.1209/0295-5075/105/18001
EISSN:: 1286-4854
ISSN:: 0295-5075

Language:: English
Pubs id:: pubs:450294
UUID:: uuid:f537ce3a-ef85-474a-9978-52b1fdeb327a
Local pid:: pubs:450294
Source identifiers:: 450294
Deposit date:: 2014-02-28
ARK identifier:: ark:/29072/ora_f537ce3aef85474a997852b1fdeb327a

Terms of use

Copyright date:: 2014

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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