Asymmetric bound states of spiral pairs in excitable media.
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.
Zemlin
Christian
C
Department of Pharmacology, SUNY Upstate Medical University, Syracuse, NY 13210, USA.
Mukund
Karthik
K
Wellner
Marcel
M
Zaritsky
Roman
R
Pertsov
Arkady
A
D008955:Models, Cardiovascular; D008962:Models, Theoretical; D013237:Stereoisomerism