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The Haldane Gap of the S = 1 Heisenberg Antiferromagnetic Chain
https://repo.qst.go.jp/records/86263
https://repo.qst.go.jp/records/8626326c2a434-1f2c-454f-91a6-196817721cd8
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-04-18 | |||||
| タイトル | ||||||
| タイトル | The Haldane Gap of the S = 1 Heisenberg Antiferromagnetic Chain | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Nakano, Hiroki
× Nakano, Hiroki× Tadano, Hiroto× Todoroki, Norikazu× Toru, Sakai× Toru, Sakai |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The one-dimensional Heisenberg antiferromagnet of S = 1 spins is studied by numerical diagonalization method based on the Lanczos algorithm. The Haldane gap of this system is numerically estimated from finite-size clusters under the twisted boundary condition up to the 30-site system. The finite-size results are analyzed by a convergence-acceleration technique; the multistep procedure of the convergence acceleration is successfully carried out. The present estimate for the gap magnitude is more precisely than the previously reported value from a Lanczos-diagonalization study. It also agrees well with the result reported in a study based on the density matrix renormalization group calculation. The present study clarifies that Lanczos-diagonalization calculations can sufficiently contribute for precisely estimating an energy gap although this method can treat only small clusters. |
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| 書誌情報 |
Journal of the Physical Society of Japan 巻 91, p. 074701-1-074701-5, 発行日 2022-06 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0031-9015 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.7566/JPSJ.91.074701 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.jps.jp/doi/10.7566/JPSJ.91.074701 | |||||
