A superior descriptor of random textures and its predictive capacity

Y. Jiao, F. H. Stillinger, S. Torquato

Research output: Contribution to journalArticle

162 Scopus citations

Abstract

Two-phase random textures abound in a host of contexts, including porous and composite media, ecological structures, biological media, and astrophysical structures. Questions surrounding the spatial structure of such textures continue to pose many theoretical challenges. For example, can two-point correlation functions be identified that can be manageably measured and yet reflect nontrivial higher-order structural information about the textures? We present a solution to this question by probing the information content of the widest class of different types of two-point functions examined to date using inverse "reconstruction" techniques. This enables us to show that a superior descriptor is the two-point cluster function C2(r), which is sensitive to topological connectedness information.We demonstrate the utility of C2(r) by accurately reconstructing textures drawn from materials science, cosmology, and granular media, among other examples. Our work suggests a theoretical pathway to predict the bulk physical properties of random textures and that also has important ramifications for atomic and molecular systems.

Original languageEnglish (US)
Pages (from-to)17634-17639
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume106
Issue number42
DOIs
StatePublished - Oct 20 2009

Keywords

  • Reconstruction
  • Two-point cluster function

ASJC Scopus subject areas

  • General

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