A general fusion procedure for open $\mathfrak{gl}(N)$ spin chains: Application to the ABJM spin chain
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866909870541766656 |
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| author | Bai, Nan |
| author_facet | Bai, Nan |
| contents | We formulate a general fusion procedure for open $\mathfrak{gl}(N)$ spin chains. We construct the fused boundary reflection matrices and the corresponding fused reflection equations. By using the intertwining relation between the fused reflection matrices and the fusion operator, we identify the invariant subspace of the fused reflection matrices carrying the irreducible representations of $\mathfrak{gl}(N)$. We also construct the fused transfer matrix and evaluate it explicitly in the total tensor product space and the invariant subspaces. Finally, we demonstrate that the ABJM spin chain model originates from such fusion procedure and derive three classes of boundary reflection matrices solutions on the anti-fundamental representation space of $\mathfrak{su}(4)$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_19394 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A general fusion procedure for open $\mathfrak{gl}(N)$ spin chains: Application to the ABJM spin chain Bai, Nan High Energy Physics - Theory We formulate a general fusion procedure for open $\mathfrak{gl}(N)$ spin chains. We construct the fused boundary reflection matrices and the corresponding fused reflection equations. By using the intertwining relation between the fused reflection matrices and the fusion operator, we identify the invariant subspace of the fused reflection matrices carrying the irreducible representations of $\mathfrak{gl}(N)$. We also construct the fused transfer matrix and evaluate it explicitly in the total tensor product space and the invariant subspaces. Finally, we demonstrate that the ABJM spin chain model originates from such fusion procedure and derive three classes of boundary reflection matrices solutions on the anti-fundamental representation space of $\mathfrak{su}(4)$. |
| title | A general fusion procedure for open $\mathfrak{gl}(N)$ spin chains: Application to the ABJM spin chain |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2507.19394 |