Improvement of Phase Synchronization between Chaotic Oscillators with External Force in a Laboratory Plasma

The improvement of phase synchronization between two coupled chaotic oscillators achieved using a pulse as the external force in a glow discharge plasma is experimentally demonstrated. The effect of coupling and pulse application on the dynamic behaviors of systems is investigated. From the viewpoint of the phase of oscillations, experimental results show that phase synchronization between two coupled chaotic oscillators is improved by applying a pulse