Refined BPS numbers on compact Calabi-Yau threefolds from Wilson loops
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arXiv
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| Format: | Preprint |
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2025
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| author | Huang, Min-xin Katz, Sheldon Klemm, Albrecht Wang, Xin |
| author_facet | Huang, Min-xin Katz, Sheldon Klemm, Albrecht Wang, Xin |
| contents | We relate the counting of refined BPS numbers on compact elliptically fibred Calabi-Yau threefolds $X$ to Wilson loop expectations values in the gauge theories that emerge in various rigid local limits of the 5d supergravity theory defined by M-theory compactification on $X$. In these local limits $X_*$ the volumes of curves in certain classes go to infinity, the corresponding very massive M2-brane states can be treated as Wilson loop particles and the refined topological string partition function on $X$ becomes a sum of terms proportional to associated refined Wilson loop expectation values. The resulting ansatz for the complete refined topological partition function on $X$ is written in terms of the proportionality coefficients which depend only on the $ε$ deformations and the Wilson loop expectations values which satisfy holomorphic anomaly equations. Since the ansatz is quite restrictive and can be further constrained by the one-form symmetries and E-string type limits for large base curves, we can efficiently evaluate the refined BPS numbers on $X$, which we do explicitly for local gauge groups up to rank three and $h_{11}(X)=5$. These refined BPS numbers pass an impressive number of consistency checks imposed by the direct counting of these numbers using the moduli space of one dimensional stable sheaves on $X$ and give us numerical predictions for the complex structure dependency of the refined BPS numbers. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2503_16270 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Refined BPS numbers on compact Calabi-Yau threefolds from Wilson loops Huang, Min-xin Katz, Sheldon Klemm, Albrecht Wang, Xin High Energy Physics - Theory Algebraic Geometry We relate the counting of refined BPS numbers on compact elliptically fibred Calabi-Yau threefolds $X$ to Wilson loop expectations values in the gauge theories that emerge in various rigid local limits of the 5d supergravity theory defined by M-theory compactification on $X$. In these local limits $X_*$ the volumes of curves in certain classes go to infinity, the corresponding very massive M2-brane states can be treated as Wilson loop particles and the refined topological string partition function on $X$ becomes a sum of terms proportional to associated refined Wilson loop expectation values. The resulting ansatz for the complete refined topological partition function on $X$ is written in terms of the proportionality coefficients which depend only on the $ε$ deformations and the Wilson loop expectations values which satisfy holomorphic anomaly equations. Since the ansatz is quite restrictive and can be further constrained by the one-form symmetries and E-string type limits for large base curves, we can efficiently evaluate the refined BPS numbers on $X$, which we do explicitly for local gauge groups up to rank three and $h_{11}(X)=5$. These refined BPS numbers pass an impressive number of consistency checks imposed by the direct counting of these numbers using the moduli space of one dimensional stable sheaves on $X$ and give us numerical predictions for the complex structure dependency of the refined BPS numbers. |
| title | Refined BPS numbers on compact Calabi-Yau threefolds from Wilson loops |
| topic | High Energy Physics - Theory Algebraic Geometry |
| url | https://arxiv.org/abs/2503.16270 |