Controlling spiral waves and spatiotemporal chaos by dislocation coupling

Suppressing the spiral waves and the spatiotemporal chaos due to its breakup in coupling systems have been considered based on a modified FitzHugh-Nagumo model (FHN). The control strategy is coupling variables u of the first system and v of the second system, which called dislocation coupling method in bidirectional coupled systems. Simulation results show that, instead of creating chaos by using common coupled method, quasi-synchronous phenomenon is available.