EXCITABLE SPIRAL WAVES IN NEMATIC LIQUID-CRYSTALS

被引：11
作者：
COULLET, P
PLAZA, F
机构：
来源：
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS | 1994年 / 4卷 / 05期
关键词：
D O I：
10.1142/S0218127494000873
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
A mechanical analog of the chemical and biological excitable medium is proposed. In nematic liquid crystals, the Freedericksz transition induced by a rotating tilted electric field provides a simple example of such a mechanical excitable system. We study this transition, derive a Ginzburg-Landau model for it, and show that the excitable spiral wave can be produced from a retractable finger-like soliton in this context.
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页码：1173 / 1182
页数：10
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