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Nucleation and collapse of scroll rings in excitable media

Nucleation and collapse of scroll rings in excitable media
Nucleation and collapse of scroll rings in excitable media
We describe a novel nucleation mechanism of scroll rings in three-dimensional reaction-diffusion systems with anomalous dispersion. The vortices form after the collision of two spherical wave fronts from a third, trailing wave that only partially annihilates in the wake of its predecessor. Depending on the relative positions of the three relevant wave sources, one obtains untwisted or twisted scroll rings. The formation of both vortex structures is demonstrated for a modified Belousov-Zhabotinsky reaction.
1079-7114
Bánsági, Tamás
3984187d-60fd-47f2-b6cb-f312dcedadae
Steinbock, Oliver
63fff225-acf0-4b4e-9eca-506d9ef27ef9
Bánsági, Tamás
3984187d-60fd-47f2-b6cb-f312dcedadae
Steinbock, Oliver
63fff225-acf0-4b4e-9eca-506d9ef27ef9

Bánsági, Tamás and Steinbock, Oliver (2006) Nucleation and collapse of scroll rings in excitable media. Physical Review Letters, 97. (doi:10.1103/physrevlett.97.198301).

Record type: Article

Abstract

We describe a novel nucleation mechanism of scroll rings in three-dimensional reaction-diffusion systems with anomalous dispersion. The vortices form after the collision of two spherical wave fronts from a third, trailing wave that only partially annihilates in the wake of its predecessor. Depending on the relative positions of the three relevant wave sources, one obtains untwisted or twisted scroll rings. The formation of both vortex structures is demonstrated for a modified Belousov-Zhabotinsky reaction.

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More information

Published date: 10 November 2006

Identifiers

Local EPrints ID: 505692
URI: http://eprints.soton.ac.uk/id/eprint/505692
DOI: doi:10.1103/physrevlett.97.198301
ISSN: 1079-7114
PURE UUID: e0e446c9-7097-4aff-aaf4-f71a9cd29c2a
ORCID for Tamás Bánsági: ORCID iD orcid.org/0009-0000-0279-2353

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Date deposited: 16 Oct 2025 16:51
Last modified: 17 Oct 2025 02:17

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Contributors

Author: Tamás Bánsági ORCID iD
Author: Oliver Steinbock

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