Scaling anomalies in reaction front dynamics of confined systems

Mariela Araujo, Hernan Larralde, Shlomo Havlin, H. Eugene Stanley

Research output: Contribution to journalArticlepeer-review

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We study the kinetics of the reaction front for diffusion-reaction systems of the form A+BC which are confined to one dimension, and in which the reactants are initially separated. For the case in which both A and B diffuse, the spatial moments of the reaction front are characterized by a hierarchy of exponents, bounded by the exponents, =1/4 and =3/8 characterizing the asymptotic time dependence of the distance lAB(t) between nearest neighbor A and B particles and the fluctuations of the midpoint m(t) between them, respectively. We argue that this behavior arises from confinement effects and will appear in other confined systems.

Original languageEnglish
Pages (from-to)3592-3595
Number of pages4
JournalPhysical Review Letters
Issue number21
StatePublished - 1993


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