Real-Space Renormalization-Group Analysis of the S=2 Antiferromagnetic Heisenberg Chain

Yoshihiro Nishiyama, Keisuke Totsuka, Naomichi Hatano, Masuo Suzuki

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

The S=2 antiferromagnetic Heisenberg open chain is analyzed with the real-space numerical renormalization-group method improved by White. The low-lying spectrum and the one-point function are evaluated to show the degeneracy and the boundary effect on the ground state. Generalized string correlation functions were calculated for θ=π and θ=π/2. The θ=π/2 string correlation is found to indicate the long-range hidden order of the ground state. These results are quite consistent with the S=2 vbs argument.

Original languageEnglish
Pages (from-to)414-422
Number of pages9
Journaljournal of the physical society of japan
Volume64
Issue number2
DOIs
Publication statusPublished - Feb 1995
Externally publishedYes

Keywords

  • Haldane conjecture
  • S=2 system
  • antiferromagnetic Heisenberg chain
  • density-matrix renormalization method
  • quantum spin systems
  • valence-bond solid

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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