论文信息 - External Noise Effect on the Onset of Williams Domain in Nematic Liquid Crystals

External Noise Effect on the Onset of Williams Domain in Nematic Liquid Crystals

In order to examine the effect of external noise on the electrohydrodynamic instability, we have measured the wave number spectrum of the pattern of Williams domain in nematic liquid crystals MBBA in the presence of external noise superposed to the a c voltage. The threshold voltage for the onset of Williams domain is found to shift to higher values with increasing noise power. Its noise dependence is interpreted in terms of a theory presented by Dubois-Violette et al.

S. Kabashima | T. Kawakubo | Akihiro Yanagita

[1] R. Lefever,et al. Phase Diagrams of Noise Induced Transitions Exact Results for a Class of External Coloured Noise , 1980 .

[2] H. Brand,et al. Comment on “Effect of White Noise on Electro- hydrodynamic Instabilities in Nematics” , 1980 .

[3] S. Kabashima,et al. Wave Number Spectrum of Dissipative Structures in Nematic Liquid Crystals , 1980 .

[4] S. Kai,et al. Effect of the White Noise on Electrohydrodynamic Transitions in Nematics , 1979 .

[5] S. Kabashima,et al. Oscillatory‐to‐nonoscillatory transition due to external noise in a parametric oscillator , 1979 .

[6] H. Brand,et al. Multiplicative stochastic processes in statistical physics , 1979 .

[7] P. G. de Gennes,et al. Hydrodynamic instabilities of nematic liquid crystals under A. C. electric fields , 1971 .

[8] Masuo Suzuki. Instability, fluctuations and critical slowing down , 1980 .

[9] S. Kabashima,et al. Experiments on phase transitions due to the external fluctuation , 1980 .

[10] W. Horsthemke,et al. Experimental Evidence of Noise-Induced Transitions in an Open Chemical System , 1979 .