Robustness of synchronization in coupled Chua´s circuits

This paper addresses the robustness in synchronization by perturbating the system parameters. Both mutually and unidirectionally coupled Chua´s circuits have been used for this investigation. The results obtained from numerical computation have been found that the coupled systems is in its most robust form when the state variable z only is used for coupling, whereas the state variable z is found to be otherwise. This paper reports a thorough investigation into the effectiveness of the parametric variations and a number of critical regions have been defined for the classification of the chaos within the context of synchronization