Phys. Rev. Lett. 95, 098302 (2005) [4 pages]Asymmetric Bound States of Spiral Pairs in Excitable MediaReceived 3 March 2005; published 26 August 2005 We present a stable regime of asymmetric bound states for spiral pairs in a generic numerical model of a homogeneous excitable medium. In this regime, one spiral tip (slave) rotates around the other (master). Master-slave dynamics occur for both same-chirality and opposite-chirality spiral pairs in a range of parameters and initial conditions. We study the dependency of master-slave characteristics on the medium’s excitation threshold and present a phenomenological model that accounts for the qualitative properties of master-slave dynamics. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.098302
DOI:
10.1103/PhysRevLett.95.098302
PACS:
82.40.Ck, 05.65.+b, 89.75.Kd
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