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Spiral formation and degeneration in heterogeneous excitable media

Toth, Rita; De Lacy Costello, Ben; Stone, Christopher; Masere, Jonathan; Adamatzky, Andrew; Bull, Larry

Authors

Rita Toth

Christopher Stone

Jonathan Masere

Lawrence Bull Larry.Bull@uwe.ac.uk
School Director (Research & Enterprise) and Professor



Abstract

Spontaneous spiral formation occurs when an excitation wave is input to a heterogeneous network of low- and high-light-intensity cells projected onto a light-sensitive Belousov-Zhabotinsky reaction. The range of network conditions where spirals form is increased if two waves are input at critical time intervals. Spirals degenerate to form multiple spirals and spirals trapped within excitable cells. Spiral formation and degeneration is dependent on network excitability, cell size, and network size. Results exhibit parallels with spiral formation in excitable biological systems such as the heart. © 2009 The American Physical Society.

Citation

Toth, R., De Lacy Costello, B., Stone, C., Masere, J., Adamatzky, A., & Bull, L. (2009). Spiral formation and degeneration in heterogeneous excitable media. Physical Review E, 79(3), 035101(R) (4 pages). https://doi.org/10.1103/PhysRevE.79.035101

Journal Article Type Article
Publication Date Mar 3, 2009
Journal Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Print ISSN 2470-0045
Electronic ISSN 1550-2376
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 79
Issue 3
Pages 035101(R) (4 pages)
DOI https://doi.org/10.1103/PhysRevE.79.035101
Keywords pattern formation in reactions with diffusion, flow and heat transfer, self-organized systems, pattern selection, pattern formation
Public URL https://uwe-repository.worktribe.com/output/1006049
Publisher URL http://link.aps.org/doi/10.1103/PhysRevE.79.035101