Large-charge Rényi entropy
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915536385867776 |
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| author | Watanabe, Masataka |
| author_facet | Watanabe, Masataka |
| contents | The charged (symmetry-resolved) vacuum Rényi entanglement entropy on a disk is computed in the limit of large U(1) global charge for any Rényi index. We show that it behaves universally for a broad class of conformal field theories including the O(2) Wilson-Fisher fixed-point, by using the effective field theory at large global charge. The result establishes one of the first concrete computations of entanglement quantities in strongly-coupled field theories. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_10072 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Large-charge Rényi entropy Watanabe, Masataka High Energy Physics - Theory Strongly Correlated Electrons Quantum Physics The charged (symmetry-resolved) vacuum Rényi entanglement entropy on a disk is computed in the limit of large U(1) global charge for any Rényi index. We show that it behaves universally for a broad class of conformal field theories including the O(2) Wilson-Fisher fixed-point, by using the effective field theory at large global charge. The result establishes one of the first concrete computations of entanglement quantities in strongly-coupled field theories. |
| title | Large-charge Rényi entropy |
| topic | High Energy Physics - Theory Strongly Correlated Electrons Quantum Physics |
| url | https://arxiv.org/abs/2506.10072 |