Collective Theory at Finite-$N$: Reduction of the Emergent Hilbert Space
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866908612500127744 |
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| author | Koch, Robert de Mello Jevicki, Antal Kemp, Garreth Rudra, Anik |
| author_facet | Koch, Robert de Mello Jevicki, Antal Kemp, Garreth Rudra, Anik |
| contents | Continuing the formulation of finite $N$ Hilbert spaces in emergent theories we study in this work $S_{N}$ symmetric collective models. For the case of $N$ bosons in $d$ dimensions, which map to matrix models with commuting matrices, we describe a complete algorithm and give a detailed case study reproducing the expected primaries and determining secondary invariants at each bidegree (a Hironaka decomposition). The method is based on null spaces (of the full collective theory) which are seen to yield all the independent trace relations, reducing the construction to linear algebra. As a stringent check, of our algorithm, we have verified that the system of invariants generates a subset of gauge invariant operators with no redundancies. This results in a reduction of the Hilbert space, in particular the gauge invariant secondary invariants realize an emergent Fock space with finite-$N$ occupation-numbers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_22525 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Collective Theory at Finite-$N$: Reduction of the Emergent Hilbert Space Koch, Robert de Mello Jevicki, Antal Kemp, Garreth Rudra, Anik High Energy Physics - Theory Continuing the formulation of finite $N$ Hilbert spaces in emergent theories we study in this work $S_{N}$ symmetric collective models. For the case of $N$ bosons in $d$ dimensions, which map to matrix models with commuting matrices, we describe a complete algorithm and give a detailed case study reproducing the expected primaries and determining secondary invariants at each bidegree (a Hironaka decomposition). The method is based on null spaces (of the full collective theory) which are seen to yield all the independent trace relations, reducing the construction to linear algebra. As a stringent check, of our algorithm, we have verified that the system of invariants generates a subset of gauge invariant operators with no redundancies. This results in a reduction of the Hilbert space, in particular the gauge invariant secondary invariants realize an emergent Fock space with finite-$N$ occupation-numbers. |
| title | Collective Theory at Finite-$N$: Reduction of the Emergent Hilbert Space |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2510.22525 |