Orbital movement of spiral waves

Biktashev, VN, Barkley, D and Biktasheva, IV ORCID: 0000-0003-2906-2881
(2009) Orbital movement of spiral waves.

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Spiral waves in active media react to small perturbations as particle-like objects. Here we apply the asymptotic theory to the interaction of spiral waves with a localized inhomogeneity, which leads to a novel prediction: drift of the spiral rotation centre along circular orbits around the inhomogeneity. The stationary orbits have alternating stability and fixed radii, determined by the properties of the bulk medium and the type of inhomogeneity, while the drift speed along an orbit depends on the strength of the inhomogeneity. Direct simulations confirm the validity and robustness of the theoretical predictions and show that these unexpected effects should be observable in experiment.

Item Type: Article
Additional Information: 4+1 pages, 4 figures, as accepted to PRL 2010/01/20
Uncontrolled Keywords: nlin.PS, nlin.PS
Depositing User: Symplectic Admin
Date Deposited: 12 Apr 2016 11:04
Last Modified: 17 Dec 2022 02:57
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3000473