Optimized phenomenological renormalization group for geometrical models: Applications to diffusion-limited aggregation

J. Lee Montag, Fereydoon Family, Tamas Vicsek, Hisao Nakanishi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We propose a new phenomenological rule for the weight function in the position-space renormalization-group approach for the calculation of the fractal dimension in models of geometrical disorder in order to avoid strong corrections to scaling due to surface effects. In our scheme the radius of gyration is used as a characteristic measure of the spatial extent of the clusters. In addition, an optimization parameter is introduced. Application to diffusion-limited aggregation in two dimensions shows that our method gives good estimates even when relatively small cells are used.

Original languageEnglish
Pages (from-to)2557-2559
Number of pages3
JournalPhysical Review A
Volume32
Issue number4
DOIs
Publication statusPublished - Jan 1 1985

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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