Simulation of coupled-oscillator feedback

A new technique aiming at the stabilization of the strong head-tail effect, based on the use of feedback oscillators coupled to the TMC modes, was proposed and tested in LEP. In this report, the results obtained by simulating the collective motion of the bunch in the presence of the new feedback using the multi-particle tracking program TRISIM will be presented, in order to better understand the physics of the system and to evaluate, for some of the possible configurations, the hardware specifications which would be required to obtain a 25% increase of the maximum bunch current with respectc to the TMC threshold.