Categories of Line Defects and Cohomological Hall Algebras
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arXiv
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915767538155520 |
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| author | Gaiotto, Davide Grygoryev, Nikita Li, Wei |
| author_facet | Gaiotto, Davide Grygoryev, Nikita Li, Wei |
| contents | Any four-dimensional Supersymmetric Quantum Field Theory with eight supercharges can be associated to a monoidal category of BPS line defects. Any Coulomb vacuum of such a theory can be conjecturally associated to an ``algebra of BPS particles'', exemplified by certain Cohomological Hall Algebras. We conjecture the existence of a monoidal functor from the category of line defects to a certain category of bimodules for the BPS Algebra in any Coulomb vacuum. We describe images of simple objects under the conjectural functor and study their monoidal structure in examples. We conjecture that the functor may be an equivalence of dg-categories and test the conjecture at the level of the equivariant Witten indices of the spaces of morphisms. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2406_07134 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Categories of Line Defects and Cohomological Hall Algebras Gaiotto, Davide Grygoryev, Nikita Li, Wei High Energy Physics - Theory Algebraic Geometry Quantum Algebra Representation Theory Any four-dimensional Supersymmetric Quantum Field Theory with eight supercharges can be associated to a monoidal category of BPS line defects. Any Coulomb vacuum of such a theory can be conjecturally associated to an ``algebra of BPS particles'', exemplified by certain Cohomological Hall Algebras. We conjecture the existence of a monoidal functor from the category of line defects to a certain category of bimodules for the BPS Algebra in any Coulomb vacuum. We describe images of simple objects under the conjectural functor and study their monoidal structure in examples. We conjecture that the functor may be an equivalence of dg-categories and test the conjecture at the level of the equivariant Witten indices of the spaces of morphisms. |
| title | Categories of Line Defects and Cohomological Hall Algebras |
| topic | High Energy Physics - Theory Algebraic Geometry Quantum Algebra Representation Theory |
| url | https://arxiv.org/abs/2406.07134 |