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Journal articles
Wave-train-induced termination of weakly anchored vortices in excitable media
Alain Pumir
1
Sitabhra Sinha
2
Médéric Argentina
3
M Hörning
4
S Sridhar
2
Simonetta Filippi
Christian Cherubini
Stefan Luther
Valentin Krinsky
3
Alain Pumir 1
Author
Sitabhra Sinha 2
Author
Médéric Argentina 3
Author IdHAL : mederic-argentina ResearcherId : http://www.researcherid.com/rid/I-8741-2014 ORCID : https://orcid.org/0000-0002-8926-7398
M Hörning 4
Author
S Sridhar 2
Author
Simonetta Filippi
Author Employer institution : Università Campus Bio-Medico di Roma / University Campus Bio-Medico of Rome
Christian Cherubini
Author Employer institution : Università Campus Bio-Medico di Roma / University Campus Bio-Medico of Rome
Stefan Luther
Author Employer institution : Max Planck Institute for Dynamics and Self-Organization
Valentin Krinsky 3
Author Employer institution : Max Planck Institute for Dynamics and Self-Organization
1
Phys-ENS - Laboratoire de Physique de l'ENS Lyon (46 allée d'Italie 69007 Lyon - France)
- ENS Lyon - École normale supérieure - Lyon (15 parvis René Descartes - BP 7000 - 69342 Lyon Cedex 07 - France)
- UCBL - Université Claude Bernard Lyon 1 (43, boulevard du 11 novembre 1918, 69622 Villeurbanne cedex - France)
- Université de Lyon (92 rue Pasteur - CS 30122, 69361 Lyon Cedex 07 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR5672 (France)
2
IMSc - Institute of Mathematical Sciences [Chennai] (IV Cross Road, CIT Campus - Taramani - Chennai 600 113 - Tamil Nadu - India)
3
INLN - Institut Non Linéaire de Nice Sophia-Antipolis (France)
- UNS - Université Nice Sophia Antipolis (... - 2019) (Parc Valrose - BP 2135 - 06103 Nice cedex 2 - France)
- COMUE UCA - COMUE Université Côte d'Azur (2015 - 2019) (Parc Valrose, 28 avenue Valrose 06108 Nice Cedex 2 - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6618 (France)
4
Kyoto University [Kyoto] (Yoshidahonmachi, Sakyo Ward, Kyoto, Kyoto Prefecture 606-8501 - Japan)
Abstract : A free vortex in excitable media can be displaced and removed by a wave train. However, simple physical arguments suggest that vortices anchored to large inexcitable obstacles cannot be removed similarly. We show that unpinning of vortices attached to obstacles smaller than the core radius of the free vortex is possible through pacing. The wave-train frequency necessary for unpinning increases with the obstacle size and we present a geometric explanation of this dependence. Our model-independent results suggest that decreasing excitability of the medium can facilitate pacing-induced removal of vortices in cardiac tissue.
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Journal articles
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https://hal-ens-lyon.archives-ouvertes.fr/ensl-01141720
Contributor : Alain Pumir <>
Submitted on : Monday, April 13, 2015 - 3:57:00 PM
Last modification on : Tuesday, June 8, 2021 - 10:18:04 AM
Contributor : Alain Pumir <>
Submitted on : Monday, April 13, 2015 - 3:57:00 PM
Last modification on : Tuesday, June 8, 2021 - 10:18:04 AM
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- HAL Id : ensl-01141720, version 1
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ENS-LYON | CNRS | UNICE | INPHYNI | UNIV-COTEDAZUR | UNIV-LYON1 | UDL
Citation
Alain Pumir, Sitabhra Sinha, Médéric Argentina, M Hörning, S Sridhar, et al.. Wave-train-induced termination of weakly anchored vortices in excitable media. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2010, 81 (010901(R)), pp.4. ⟨ensl-01141720⟩
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