CONTROLLING OF THE INSTABILITY OF-CHAOTIC MOTION IN AN ION CLOUD
控制离子云混沌运动中的不稳定性

Interaction between the detecting field and the ion cloud in an actual Paul trap is described by the Duffing equation.For small damping,the unstable periodic solutions embedded in chaotic attractor and their stability conditions are obtained.Theoretical analysis reveals that the instability of chaotic motion can be controlled by adjusting the control parameters to fit the conditions.Excellent agreement is found between the analytical results and experimental data.