FIG. 7.
(Color online) Three selected alternans solution in a homogeneous fiber of 100 cells with positive Ca→Vm coupling. The pacing period is 300 ms in all panels. Panel (a) is obtained using a perturbed downsweep protocol. Panels (b) and (c) are obtained by direct pacing with with initial uniform distribution and random distribution of Cain, respectively. (See text for details.) The last 10 beats of the steady-state solutions are plotted: odd beats are red solid and even beats are blue dashed.