Spatial coherence resonance near pattern-forming instabilities

被引：90

作者：

Carrillo, O

Santos, MA

García-Ojalvo, J

Sancho, JM

机构：

[1] Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain

[2] Free Univ Brussels, Serv Comformat Macromol Biol Bioinformat, Brussels, Belgium

[3] Univ Politecn Cataluna, Dept Fis & Engn Nucl, E-08222 Terrassa, Spain

[4] Cornell Univ, Ctr Appl Math, Ithaca, NY 14853 USA

来源：

EUROPHYSICS LETTERS | 2004年 / 65卷 / 04期

关键词：

D O I：

10.1209/epl/i2003-10105-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The phenomenon of spatial coherence resonance is presented and studied. Specifically, we show that spatiotemporal noise is able to optimally extract an intrinsic spatial scale nonlinear media close to (but before) a pattern-forming instability. This effect is observed in model of pattern-forming chemical reaction and in the Swift-Hohenberg model of fluid convection. In the latter case, the phenomenon is described analytically via an approximate approach.

引用

页码：452 / 458

页数：7

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