  Turbulence control in the two-dimensional complex Ginzburg-Landau equation is
investigated. A new approach is proposed for the control purpose. In the
presence of a small spiral wave seed initiation, a fully developed turbulence
can be completely annihilated by injecting a single periodic signal to a small
fixed space area around the spiral wave tip. The control is achieved in a
parameter region where the spiral wave of the uncontrolled system is absolutely
unstable. The robustness, convenience and high control efficiency of this
method is emphasized, and the mechanism underlying these practical advantages
are intuitively understood.
