Stationary fronts in an A+B→0 reaction under subdiffusion

被引：38

作者：

Froemberg, Daniela ^{[1
]}

Sokolov, Igor M. ^{[1
]}

机构：

[1] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.100.108304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider stationary profiles of reactants' concentrations and of reaction zones of an A+B -> 0 reaction in a flat subdiffusive medium fed by reactants of both types on both sides. The structures formed under such conditions differ strikingly from those in simple diffusion and exhibit accumulation and depletion zones close to the boundaries and nonmonotonic behavior of the reaction intensity with respect to the reactants' concentrations at the boundaries. These findings are connected to an effectively nonlinear character of transport in subdiffusive systems under reactions.

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