Pattern Formation in the Belousov-Zhabotinsky Reaction with Photochemical Global Feedback

نویسندگان

  • Vladimir K. Vanag
  • Irving R. Epstein
چکیده

We have found a variety of oscillating patterns in the Belousov-Zhabotinsky (BZ) reaction-diffusion system with global negative feedback. Bulk oscillations and wave patterns arise at low values of the feedback strength. When the feedback exceeds a critical value, cluster patterns arise. Besides the standing, irregular, and localized clusters observed earlier, we have found new types of clusters: three-phase, localized irregular, and localized oscillatory clusters. A model of three identical Oregonators with global negative coupling yields the same bifurcation scenario as found in our experiments.

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تاریخ انتشار 2000