Critical properties of S= 1/2 antiferromagnetic XXZ chain with next-nearest-neighbour interactions

K. Nomura, K. Okamoto

研究成果: ジャーナルへの寄稿学術誌査読

187 被引用数 (Scopus)

抄録

We investigate numerically the critical lines and the critical properties of the fluid-dimer and the Neel-dimer transitions of the S= 1/2 antiferromagnetic XXZ chain with next-nearest interactions, and we confirm that the universality class of this model belongs to the quantum sine-Gordon model, as is expected from the bosonization. The method which we use in this paper to calculate the critical lines is free from the logarithmic corrections on the Kosterlitz-Thouless (K-T)-type transition line, which have made the K-T critical point difficult to obtain. By the use of this method, it is possible to determine the K-T critical line with high precision from small size data, and to identify the universality class.

本文言語英語
論文番号012
ページ(範囲)5773-5788
ページ数16
ジャーナルJournal of Physics A: Mathematical and General
27
17
DOI
出版ステータス出版済み - 12月 1 1994
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 統計物理学および非線形物理学
  • 数理物理学
  • 物理学および天文学(全般)

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