Higher Operations in Perturbation Theory

Fuente: arXiv
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Hauptverfasser: Gaiotto, Davide, Kulp, Justin, Wu, Jingxiang
Format: Preprint
Veröffentlicht: 2024
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author Gaiotto, Davide
Kulp, Justin
Wu, Jingxiang
author_facet Gaiotto, Davide
Kulp, Justin
Wu, Jingxiang
contents We discuss the role of formal deformation theory in quantum field theories and present various ``higher operations'' which control their deformations, (generalized) OPEs, and anomalies. Particular attention is paid to holomorphic-topological theories where we systematically describe and regularize the Feynman diagrams which compute these higher operations in free and perturbative scenarios, including examples with defects. We prove geometrically that the resulting higher operations satisfy expected ``quadratic axioms,'' which can be interpreted physically as a form of Wess-Zumino consistency condition for BRST symmetry. We discuss a higher-dimensional analogue of Kontsevich's formality theorem, which proves the absence of perturbative corrections in TQFTs with two or more topological directions. We discuss at some length the relation of our work to the theory of factorization algebras and provide an introduction to the subject for physicists.
format Preprint
id arxiv_https___arxiv_org_abs_2403_13049
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Higher Operations in Perturbation Theory
Gaiotto, Davide
Kulp, Justin
Wu, Jingxiang
High Energy Physics - Theory
Quantum Algebra
We discuss the role of formal deformation theory in quantum field theories and present various ``higher operations'' which control their deformations, (generalized) OPEs, and anomalies. Particular attention is paid to holomorphic-topological theories where we systematically describe and regularize the Feynman diagrams which compute these higher operations in free and perturbative scenarios, including examples with defects. We prove geometrically that the resulting higher operations satisfy expected ``quadratic axioms,'' which can be interpreted physically as a form of Wess-Zumino consistency condition for BRST symmetry. We discuss a higher-dimensional analogue of Kontsevich's formality theorem, which proves the absence of perturbative corrections in TQFTs with two or more topological directions. We discuss at some length the relation of our work to the theory of factorization algebras and provide an introduction to the subject for physicists.
title Higher Operations in Perturbation Theory
topic High Energy Physics - Theory
Quantum Algebra
url https://arxiv.org/abs/2403.13049