Unstable Instantons in A-model Localization

2023/12/18 by Emil Hakan Leeb-lundberg, Leeb-Lundberg, Emil Hakan · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2312.11347

openalex publication_date 2023/12/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We apply localization techniques to A-twisted N=(2,2) theories of vector multiplets on S². We derive formulae for A-model partition functions and correlators as integrals along a real contour, as opposed to a complex one. Using the correlator formula, we successfully recover the unstable instanton partition function of pure two-dimensional Yang-Mills theory from the vacuum expectation value of an A-model operator.

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• Hyperfunctions in A-model Localization

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