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Localization and resummationof unstable instantons in 2d Yang-Mills

Localization and resummationof unstable instantons in 2d Yang-Mills
Localization and resummationof unstable instantons in 2d Yang-Mills

We compute the exact all-orders perturbative expansion for the partition function of 2d SU(2) Yang-Mills theory on closed surfaces around higher critical points of the classical action. We demonstrate that the expansion can be derived from the lattice partition function for all genera using a distributional generalization of the Poisson summation formula. We then recompute the expansion directly, using a stationary phase version of supersymmetric localization. The result of localization is a novel effective action which is itself a distribution rather than a function of the supersymmetric moduli. We comment on possible applications to A-twisted models and their analogs in higher dimensions.

Nonperturbative Effects, Solitons Monopoles and Instantons, Supersymmetric Gauge Theory, Topological Field Theories
1126-6708
Griguolo, Luca
1314c793-a7eb-447a-bd37-562887e7ffe1
Panerai, Rodolfo
557cf2f1-88c0-459e-9bc2-87817afbe2f5
Papalini, Jacopo
916af386-a900-46ec-8677-3542df012455
Seminara, Domenico
6806617e-cbc1-4080-9873-e00cc1f60519
Yaakov, Itamar
5b9fd2e5-4b8a-4ee0-9b9e-ee38930a951e
Griguolo, Luca
1314c793-a7eb-447a-bd37-562887e7ffe1
Panerai, Rodolfo
557cf2f1-88c0-459e-9bc2-87817afbe2f5
Papalini, Jacopo
916af386-a900-46ec-8677-3542df012455
Seminara, Domenico
6806617e-cbc1-4080-9873-e00cc1f60519
Yaakov, Itamar
5b9fd2e5-4b8a-4ee0-9b9e-ee38930a951e

Griguolo, Luca, Panerai, Rodolfo, Papalini, Jacopo, Seminara, Domenico and Yaakov, Itamar (2024) Localization and resummationof unstable instantons in 2d Yang-Mills. Journal of High Energy Physics, 2024 (6), [188]. (doi:10.1007/JHEP06(2024)188).

Record type: Article

Abstract

We compute the exact all-orders perturbative expansion for the partition function of 2d SU(2) Yang-Mills theory on closed surfaces around higher critical points of the classical action. We demonstrate that the expansion can be derived from the lattice partition function for all genera using a distributional generalization of the Poisson summation formula. We then recompute the expansion directly, using a stationary phase version of supersymmetric localization. The result of localization is a novel effective action which is itself a distribution rather than a function of the supersymmetric moduli. We comment on possible applications to A-twisted models and their analogs in higher dimensions.

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Accepted/In Press date: 3 June 2024
Published date: 27 June 2024
Keywords: Nonperturbative Effects, Solitons Monopoles and Instantons, Supersymmetric Gauge Theory, Topological Field Theories

Identifiers

Local EPrints ID: 492178
URI: http://eprints.soton.ac.uk/id/eprint/492178
ISSN: 1126-6708
PURE UUID: f938dcff-e7d6-44ef-9282-8369cc3e77c8
ORCID for Itamar Yaakov: ORCID iD orcid.org/0000-0002-4924-2970

Catalogue record

Date deposited: 19 Jul 2024 16:34
Last modified: 20 Jul 2024 02:10

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Contributors

Author: Luca Griguolo
Author: Rodolfo Panerai
Author: Jacopo Papalini
Author: Domenico Seminara
Author: Itamar Yaakov ORCID iD

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