Energetics and geometry of excitations in random systems

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

Methods for studying droplets in models with quenched disorder are critically examined. Low-energy excitations in two-dimensional models are investigated by finding minimal energy interior excitations and by computing the effect of bulk perturbations. The numerical data support the assumptions of compact droplets and a single exponent for droplet energy scaling. Analytic calculations show how strong corrections to power laws can result when samples and droplets are averaged over. Such corrections can explain apparent discrepancies in several previous numerical results for spin glasses.

Original languageEnglish (US)
Article number060202
Pages (from-to)602021-602029
Number of pages9
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number6
StatePublished - Mar 1 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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