Authors Referees APS Members |
January 2008, to be published in Physical Review E
Transition from traveling to standing waves in the 4:1 resonant Belousov-Zhabotinsky
reaction
We report a transition from traveling to standing domain walls in a parametrically forced 2D oscillatory Belousov-Zhabotinsky (BZ) chemical reaction in 4:1 resonance. Our experimental results demonstrate spatio-temporal solutions not predicted by previous analytic results of the complex Ginzburg-Landau amplitude equation (CGLE) and numerical results from reaction-diffusion models. In addition to the stationary $\pi$-fronts at high forcing amplitudes, the 4:1 resonant patterns we observe include stationary $\pi/2$-fronts. © 2008 The American Physical Society.
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