Phase transition and hidden orders of the Heisenberg ladder model in the ground state

Yoshihiro Nishiyama, Naomichi Hatano, Masuo Suzuki

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

A ground-state phase transition of the antiferromagnetic Heisenberg ladder model is investigated by means of the exact-diagonalization method. A hidden-order correlation is defined for characterizing the ground state. The critical point and the exponent v are estimated accurately with the use of the hidden-order correlation. The relevance of the resonating-valence-bond theory to the present system is also discussed by inspecting hidden orders and the elementary excitation.

Original languageEnglish
Pages (from-to)1967-1979
Number of pages13
JournalJournal of the Physical Society of Japan
Volume64
Issue number6
Publication statusPublished - Jun 1995
Externally publishedYes

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ladders
ground state
elementary excitations
critical point
exponents
valence

Keywords

  • Dimer phase
  • Haldane phase
  • Hidden correlation
  • Ladder model
  • Resonating valence bond

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Phase transition and hidden orders of the Heisenberg ladder model in the ground state. / Nishiyama, Yoshihiro; Hatano, Naomichi; Suzuki, Masuo.

In: Journal of the Physical Society of Japan, Vol. 64, No. 6, 06.1995, p. 1967-1979.

Research output: Contribution to journalArticle

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