Alternans and Spiral Breakup in an Excitable Reaction-Diffusion System: A Simulation Study

Figure 7

Time sequence illustrating the dynamics of spiral waves in two dimensions. The plots in (a) and (b) are cross-sectional plots in one-dimensional form. (a) A stable spiral traveling wave for and (b) an oscillatory spiral wave pattern for . (c) The alternans or oscillation of different spiral pulses for as the development of time. The parameter values used in the simulation are taken from Table 1.

(a)

(b)

(c)