Many papers has been published in this research area and a growing interest is focused in caotic systems. From the first publication in 1983, the Chua's circuit has been the better way to simply obtain a caotic behaviour. In fact are necessary few electric components for obtain that. Keyword of the caotic behavior is the non-linearity and for that a special diode is present in a typical "bill of components".
An important research activity has been devoted to synchronize two or more caotic systems. Aim of this project is to compare and explain various kind of strategies used for do that, from "Pecora and Carroll" to Impulsive method and so forth.
Many important concepts as Lyapunov exponent and bifurcation phenomena are explained.