Pure Noise-Induced Pattern Formations in a Nematic Liquid Crystal

被引：8

作者：

Huh, Jong-Hoon ^{[1
]}

Kai, Shoich ^{[2
]}

机构：

[1] Kyushu Inst Technol, Fac Comp Sci & Syst Engn, Dept Mech Informat Sci & Technol, Fukuoka 8208502, Japan

[2] Kyushu Univ, Fac Engn, Dept Appl Quantum Phys & Nucl Engn, Fukuoka 8128581, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2009年 / 78卷 / 04期

关键词：

noise; electrohydrodynamic instability; liquid crystal; homeotropic alignment; ELECTROHYDRODYNAMIC CONVECTION; MULTIPLICATIVE NOISE; INSTABILITIES; DRIVEN; FLUCTUATIONS; STABILITY; ONSET;

D O I：

10.1143/JPSJ.78.043601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report pure noise-induced pattern formations in a homeotropically aligned nematic liquid crystal. Williams domains and stripe patterns are induced by colored and white noises, respectively, and the Fredericks transition is also found, which has no dependence on correlation time of the external noise. Furthermore. threshold behavior in the presence of a regular (sinusoidal) field superposed with the noise was investigated to understand the intrinsic role of the noise on the mechanisms driving noise-induced patterns and transitions.

引用

页数：4

共 27 条

[1] Electrohydrodynamic convection in liquid crystals driven by multiplicative noise: Sample stability [J].

Behn, U ;

Lange, A ;

John, T .

PHYSICAL REVIEW E, 1998, 58 (02) :2047-2060

[2]

Blinov L., 1983, Electro-optical and magneto-optical properties of liquid crystals

[3] ON ELECTRICALLY DRIVEN PATTERN-FORMING INSTABILITIES IN PLANAR NEMATICS [J].

BODENSCHATZ, E ;

ZIMMERMANN, W ;

KRAMER, L .

JOURNAL DE PHYSIQUE, 1988, 49 (11) :1875-1899

[4] DIELECTRIC-RELAXATION AS A MULTIPLICATIVE STOCHASTIC-PROCESS .1. GENERAL-THEORY [J].

EVANS, MW ;

FERRARIO, M ;

GRIGOLINI, P .

PHYSICA A, 1982, 111 (1-2) :255-272

[5] Stochastic resonance [J].

Gammaitoni, L ;

Hanggi, P ;

Jung, P ;

Marchesoni, F .

REVIEWS OF MODERN PHYSICS, 1998, 70 (01) :223-287

[6]

Garca-Ojalvo J., 1999, Noise in Spatially Extended Systems

[7] Random multiplicative process appearing in "critical state" of stochastic many-body system [J].

Hashimoto, Noboru .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2006, 75 (08)

[8] CONDUCTION-INDUCED ALIGNMENT OF NEMATIC LIQUID CRYSTALS - BASIC MODEL AND STABILITY CONSIDERATIONS [J].

HELFRICH, W .

JOURNAL OF CHEMICAL PHYSICS, 1969, 51 (09) :4092-&

[9] EFFECT OF EXTERNAL-FIELD FLUCTUATIONS ON INSTABILITIES IN NEMATIC LIQUID-CRYSTALS [J].

HORSTHEMKE, W ;

DOERING, CR ;

LEFEVER, R ;

CHI, AS .

PHYSICAL REVIEW A, 1985, 31 (02) :1123-1135

[10]

Horsthemke W, 1984, Noise-Induced Transitions: Theory and Applications in Physics, Chemistry, and Biology

← 1 2 3 →