Localized control for non-resonant Hamiltonian systems

We present a method of localized control of chaos in Hamiltonian systems. The aim is to modify the perturbation locally using a small control term which makes the controlled Hamiltonian more regular. We provide an explicit expression for the control term which is able to recreate invariant (KAM) tori without modifying other parts of phase space. We apply this method of localized control to a forced pendulum model, to the delta-kicked rotor (standard map) and to a non-twist Hamiltonian.