Experimental evidence of using a circularly polarized electric field to control spiral turbulence

Experimental evidence of the use of a circularly polarized electric field to control the spiral turbulence in a reaction-diffusion system is presented. The spiral turbulence obtained in the Belousov-Zhabotinsky reaction is shown to be forced into ordered stable spiral waves or targetlike waves by a circularly polarized electric field with appropriate frequency and intensity. An Arnold's-tongue-shaped control phase diagram is obtained, illustrating the resonance essence of the control.