Volume 86, Number 1, April 2009
Article Number 18005
Number of page(s) 5
Section Interdisciplinary Physics and Related Areas of Science and Technology
Published online 20 April 2009
EPL, 86 (2009) 18005
DOI: 10.1209/0295-5075/86/18005

Spiral wave annihilation by low-frequency planar fronts in a model of excitable media

Miguel A. de la Casa1, F. Javier de la Rubia1 and Plamen Ch. Ivanov2, 3, 4

1   Departamento de Física Fundamental, Universidad Nacional de Educación a Distancia c/Senda del Rey 9, 28080 Madrid, Spain, EU
2   Department of Sleep Medicine, Harvard Medical School and Brigham and Women's Hospital Boston, MA 02115, USA
3   Center for Polymer Studies and Department of Physics, Boston University - Boston, MA 02215, USA
4   Institute of Solid State Physics, Bulgarian Academy of Sciences - 1784 Sofia, Bulgaria, EU

received 25 November 2008; accepted in final form 12 March 2009; published April 2009
published online 20 April 2009

We perform numerical lattice simulations of an excitable medium. We show that the interaction of a spiral wave with a periodic train of planar fronts leads to annihilation of the spiral wave even when i) the period of the fronts is longer than the period of the spiral and ii) the annihilating fronts are released at a significant distance from the spiral. The observed annihilation is not due to spiral drift, and occurs well inside the lattice.

87.19.Hh - Cardiac dynamics.
87.85.Tu - Modeling biomedical systems.
89.75.Kd - Patterns.

© EPLA 2009