Míguez D G, Nicola E M, Muñuzuri A P, Casademunt J, Sagués F, Kramer L
Grupo de Física non Lineal, Universidade de Santiago de Compostela, E-15782 Santiago de Compostela, Spain.
Phys Rev Lett. 2004 Jul 23;93(4):048303. doi: 10.1103/PhysRevLett.93.048303.
We study the response of Turing stripe patterns to a simple spatiotemporal forcing. This forcing has the form of a traveling wave and is spatially resonant with the characteristic Turing wavelength. Experiments conducted with the photosensitive chlorine dioxide-iodine-malonic acid reaction reveal a striking symmetry-breaking phenomenon of the intrinsic striped patterns giving rise to hexagonal lattices for intermediate values of the forcing velocity. The phenomenon is understood in the framework of the corresponding amplitude equations, which unveils a complex scenario of dynamical behaviors.
我们研究了图灵条纹图案对简单时空强迫的响应。这种强迫具有行波的形式，并且在空间上与特征图灵波长共振。用光敏二氧化氯 - 碘 - 丙二酸反应进行的实验揭示了固有条纹图案的一种显著的对称性破缺现象，对于强迫速度的中间值会产生六边形晶格。该现象在相应的振幅方程框架内得到理解，这揭示了一个复杂的动力学行为场景。
