DIFFUSION-LIMITED BINARY REACTIONS - THE HIERARCHY OF NONCLASSICAL REGIMES FOR CORRELATED INITIAL CONDITIONS

被引:13
作者
LINDENBERG, K
ARGYRAKIS, P
KOPELMAN, R
机构
[1] UNIV CALIF SAN DIEGO,INST NONLINEAR SCI,LA JOLLA,CA 92093
[2] UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109
[3] UNIV MICHIGAN,DEPT PHYS,ANN ARBOR,MI 48109
[4] UNIV THESSALONIKI,DEPT PHYS,GR-54006 THESSALONIKI,GREECE
关键词
D O I
10.1021/j100064a020
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We predict hierarchies of kinetic regimes and crossover conditions for elementary A + A --> 0 and A + B --> 0 batch reactions from a nonclassical reaction-diffusion formalism that includes spatial fluctuations. This paper addresses the case of a spatially correlated initial distribution of reactants; random initial conditions have been discussed in another paper. The hierarchies of kinetic regimes are even richer than those found for random initial conditions, with the particular hierarchy determined by the tightness of the initial correlations. In most cases there is one regime (which we call a ''burst'') where the decay of the densities in the A + B reaction is even faster than in the A + A reaction. We confirm our predictions via detailed numerical simulations.
引用
收藏
页码:3389 / 3397
页数:9
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