Quasi-stationary distributions for models of heterogeneous catalysis

被引：16

作者：

de Oliveira, MM ^{[1
]}

Dickman, R ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, Dept Fis, Inst Ciencias Exatas, BR-30123970 Belo Horizonte, MG, Brazil

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2004年 / 343卷

关键词：

quasi-stationary distributions; mean-field theory; catalysis models;

D O I：

10.1016/j.physa.2004.06.155

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We construct the quasi-stationary (QS) distribution for two models of heterogeneous catalysis having two absorbing states: the ZGB model for the oxidation of CO, and a version with noninstantaneous reactions. Using a mean-field-like approximation, we study the quasistationary surface coverages, moment ratios and the lifetime of the QS state. We also derive an improved, consistent one-site mean-field theory for the ZGB model. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：525 / 542

页数：18

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