A Groupoid Construction of Functional Integrals: Brownian Motion and Some TQFTs
Fuente:
arXiv
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866916137809215488 |
|---|---|
| author | Lackman, Joshua |
| author_facet | Lackman, Joshua |
| contents | We formalize Feynman's construction of the quantum mechanical path integral. To do this, we shift the emphasis in differential geometry from the tangent bundle onto the pair groupoid. This allows us to use the van Est map and the piecewise linear structure of manifolds to develop a coordinate-free, partition of unity-free approach to integration of differential forms, etc. This framework makes sense for any field theory valued in a Lie algebroid. We apply it to define the Wiener measure, stochastic integrals and other observables in a coordinate-free way. We use it to reconstruct Chern-Simons with finite gauge group and to obtain some non-perturbative deformation quantizations via the Poisson sigma model on a disk. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_05866 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A Groupoid Construction of Functional Integrals: Brownian Motion and Some TQFTs Lackman, Joshua Differential Geometry High Energy Physics - Theory Mathematical Physics Algebraic Topology Probability We formalize Feynman's construction of the quantum mechanical path integral. To do this, we shift the emphasis in differential geometry from the tangent bundle onto the pair groupoid. This allows us to use the van Est map and the piecewise linear structure of manifolds to develop a coordinate-free, partition of unity-free approach to integration of differential forms, etc. This framework makes sense for any field theory valued in a Lie algebroid. We apply it to define the Wiener measure, stochastic integrals and other observables in a coordinate-free way. We use it to reconstruct Chern-Simons with finite gauge group and to obtain some non-perturbative deformation quantizations via the Poisson sigma model on a disk. |
| title | A Groupoid Construction of Functional Integrals: Brownian Motion and Some TQFTs |
| topic | Differential Geometry High Energy Physics - Theory Mathematical Physics Algebraic Topology Probability |
| url | https://arxiv.org/abs/2402.05866 |