The Hitchin and Knizhnik-Zamolodchikov connections are projectively equivalent in the genus zero case
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2026
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866911698697322496 |
|---|---|
| author | Andersen, Jørgen Ellegaard Henke, Tim |
| author_facet | Andersen, Jørgen Ellegaard Henke, Tim |
| contents | This paper establishes the projective equivalence between the Knizhnik-Zamolodchikov connection and the Hitchin connection in genus 0 with at least 3 marked points. The Knizhnik-Zamolodchikov connection is defined on the sheaf of conformal blocks in the Tsuchiya-Ueno-Yamada model of conformal field theory. The Hitchin connection is defined on the Verlinde bundle via geometric quantisation of the moduli space of flat connections. Pauly's isomorphism establishes the equivalence of these two vector bundles. The main theorem of this paper is that the isomorphism intertwines these two connections up to a scalar-valued one-form. In addition, this theorem is used to construct a Hitchin connection through an auxiliary metaplectic correction. As a corollary of the main theorem, this construction of the Hitchin connection is projectively unique and projectively flat. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_20097 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The Hitchin and Knizhnik-Zamolodchikov connections are projectively equivalent in the genus zero case Andersen, Jørgen Ellegaard Henke, Tim Quantum Algebra Mathematical Physics Algebraic Geometry Differential Geometry This paper establishes the projective equivalence between the Knizhnik-Zamolodchikov connection and the Hitchin connection in genus 0 with at least 3 marked points. The Knizhnik-Zamolodchikov connection is defined on the sheaf of conformal blocks in the Tsuchiya-Ueno-Yamada model of conformal field theory. The Hitchin connection is defined on the Verlinde bundle via geometric quantisation of the moduli space of flat connections. Pauly's isomorphism establishes the equivalence of these two vector bundles. The main theorem of this paper is that the isomorphism intertwines these two connections up to a scalar-valued one-form. In addition, this theorem is used to construct a Hitchin connection through an auxiliary metaplectic correction. As a corollary of the main theorem, this construction of the Hitchin connection is projectively unique and projectively flat. |
| title | The Hitchin and Knizhnik-Zamolodchikov connections are projectively equivalent in the genus zero case |
| topic | Quantum Algebra Mathematical Physics Algebraic Geometry Differential Geometry |
| url | https://arxiv.org/abs/2605.20097 |