A multicritical point of $S = 1$ XXZ chain with single ion anisotropy
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866916576781926400 |
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| author | Shiraishi, Shuichi Nomura, Kiyohide |
| author_facet | Shiraishi, Shuichi Nomura, Kiyohide |
| contents | We research the ground state of the $S = 1$ XXZ spin chain with single ion anisotropy, focusing on XY1, XY2 (Spin Nematic), Neel, Haldane phases. Recently, it was reported that the four phases did not intersect at a single point using conventional numerical methods, which is inconsistent with the bosonization theory. In order to resolve this discrepancy, we propose a unified method to determine phase boundaries by combining conformal field theory (CFT) with numerical diagonalization. And we discuss the symmetry and universality class of the multicritical point. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_03326 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A multicritical point of $S = 1$ XXZ chain with single ion anisotropy Shiraishi, Shuichi Nomura, Kiyohide Statistical Mechanics We research the ground state of the $S = 1$ XXZ spin chain with single ion anisotropy, focusing on XY1, XY2 (Spin Nematic), Neel, Haldane phases. Recently, it was reported that the four phases did not intersect at a single point using conventional numerical methods, which is inconsistent with the bosonization theory. In order to resolve this discrepancy, we propose a unified method to determine phase boundaries by combining conformal field theory (CFT) with numerical diagonalization. And we discuss the symmetry and universality class of the multicritical point. |
| title | A multicritical point of $S = 1$ XXZ chain with single ion anisotropy |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2410.03326 |