Origin of quasiperiodic dynamics in excitable media.
Analysis of the dynamic instabilities of periodic waves in a one-dimensional excitable ring medium demonstrates that driven oscillations of a pulse width display different oscillatory behavior at different values of stimulation frequency. Initial periodicity evolves to quasiperiodic dynamics when the propagation speed of a pulse approaches its minimal value determined by the dispersion relation of a medium.
Schwartz
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Naval Research Laboratory, Special Project in Nonlinear Science, Code 6700.3, PPD, Washington, DC 20375, USA.
Triandaf
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I
Starobin
J M
JM
Chernyak
Y B
YB
D003198:Computer Simulation; D008954:Models, Biological; D008956:Models, Chemical; D017711:Nonlinear Dynamics; D013816:Thermodynamics