par Horsthemke, Werner ;Doering, Charles R;Lefever, René ;Chi, A. S.
Référence Physical review. A, Atomic, Molecular, and Optical Physics, 31, 2, page (1123-1135)
Publication Publié, 1985
Article révisé par les pairs
Résumé : We briefly review the results of experimental investigations into the effect of noise on electrohydrodynamic instabilities in nematic liquid crystals. So far, no satisfactory theoretical treatment of the observed noise-induced effects exists, apparently due to the fact that the noise is coupled to the system through two different mechanisms. By considering a simpler, but related instability, namely the Fréedericksz transition, we are able to isolate one of the mechanisms. We present a theoretical treatment of the effect of colored noises on the full nonlinear problem, and make quantitative predictions concerning the behavior of the system as a function of the correlation time and the intensity of the noise.