title: Transition from traveling to standing waves in the 4:1 resonant Belousov-Zhabotinsky reaction.
abstract: We report a transition from traveling to standing domain walls in a parametrically forced two-dimensional oscillatory Belousov-Zhabotinsky chemical reaction in 4:1 resonance. Our experimental results demonstrate spatiotemporal solutions not predicted by previous analytic results of the complex Ginzburg-Landau amplitude equation 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.
authors: Center for Nonlinear and Complex Systems, Department of Physics, Duke University, Durham, North Carolina 27708, USA.
authors: Bradley
authors: B
authors: Marts
authors: Anna L
authors: AL
authors: Lin