2015年10月
SU(N) Heisenberg model with multicolumn representations
PHYSICAL REVIEW B
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- ,
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- 巻
- 92
- 号
- 13
- 開始ページ
- 134404
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevB.92.134404
- 出版者・発行元
- AMER PHYSICAL SOC
The SU(N) symmetric antiferromagnetic Heisenberg model with multicolumn representations on the two-dimensional square lattice is investigated by quantum Monte Carlo simulations. For the representation of a Young diagram with two columns, we confirm that a valence-bond solid (VBS) order appears as soon as the Neel order disappears at N = 10, indicating no intermediate phase. In the case of the representation with three columns, there is no evidence for either the Neel or the VBS ordering for N >= 15. This is actually consistent with the large-N theory, which predicts that the VBS state immediately follows the Neel state, because the expected spontaneous order is too weak to be detected.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevB.92.134404
- ISSN : 1098-0121
- eISSN : 1550-235X
- Web of Science ID : WOS:000362422900007