Universality class of an (formula presented) quantum spin ladder system with four-spin exchange

Keigo Hijii, Kiyohide Nomura

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

We study a (formula presented) Heisenberg spin ladder with four-spin exchange. Combining numerical results with conformal field theory, we find a phase transition with central charge (formula presented) Since this system has an SU(2) symmetry, we can conclude that this critical theory is described by (formula presented) SU(2) Wess-Zumino-Witten model with (formula presented) symmetry breaking.

本文言語英語
ページ(範囲)1-6
ページ数6
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
65
10
DOI
出版ステータス出版済み - 1 1 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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