Noise-induced order in the chaos of the Belousov-Zhabotinsky reaction.
Noise can stabilize a metastable state in such a way that the system remains in this state for a longer time than in the absence of noise. When this phenomenon is observed in chaos, it is called "noise-induced order." We have experimentally detected noise-induced order in the Belousov-Zhabotinsky reaction. That is, when noise is added to the chaos with the flow rate near the period-three oscillation, a decrease of the maximum Lyapunov exponent and a convergence of the Fourier spectrum are observed. Moreover, the analysis on the one-dimensional return map reveals that noise-induced order is caused by the convergence of the chaotic trajectory into the laminar region.
Yoshimoto
Minoru
M
Department of Bioengineering, Faculty of Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan. myoshi@be.kagoshima-u.ac.jp
Shirahama
Hiroyuki
H
Kurosawa
Shigeru
S
D008956:Models, Chemical; D017711:Nonlinear Dynamics; D013816:Thermodynamics; D013997:Time Factors