Exact multi-instantons in topological string theory

Topological string theory has multi-instanton sectors which lead to non-perturbative effects in the string coupling constant and control the large order behavior of the perturbative genus expansion. As proposed by Couso, Edelstein, Schiappa and Vonk, these sectors can be described by a trans-series...

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Main Author: Jie Gu, Marcos Mariño
Format: Article
Language:English
Published: SciPost 2023-10-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.15.4.179
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author Jie Gu, Marcos Mariño
author_facet Jie Gu, Marcos Mariño
author_sort Jie Gu, Marcos Mariño
collection DOAJ
description Topological string theory has multi-instanton sectors which lead to non-perturbative effects in the string coupling constant and control the large order behavior of the perturbative genus expansion. As proposed by Couso, Edelstein, Schiappa and Vonk, these sectors can be described by a trans-series extension of the BCOV holomorphic anomaly equations. In this paper we find exact, closed form solutions for these multi-instanton trans-series in the case of local Calabi-Yau manifolds. The resulting multi-instanton amplitudes turn out to be very similar to the eigenvalue tunneling amplitudes of matrix models. Their form suggests that the flat coordinates of the Calabi-Yau manifold are naturally quantized in units of the string coupling constant, as postulated in large $N$ dualities. Based on our results we obtain a general picture for the resurgent structure of the topological string in the local case, which we illustrate with explicit calculations for local $\mathbb{P}^2$.
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spelling doaj.art-a9521710951d40f092e3e69dc3f89ca02023-10-26T15:50:25ZengSciPostSciPost Physics2542-46532023-10-0115417910.21468/SciPostPhys.15.4.179Exact multi-instantons in topological string theoryJie Gu, Marcos MariñoTopological string theory has multi-instanton sectors which lead to non-perturbative effects in the string coupling constant and control the large order behavior of the perturbative genus expansion. As proposed by Couso, Edelstein, Schiappa and Vonk, these sectors can be described by a trans-series extension of the BCOV holomorphic anomaly equations. In this paper we find exact, closed form solutions for these multi-instanton trans-series in the case of local Calabi-Yau manifolds. The resulting multi-instanton amplitudes turn out to be very similar to the eigenvalue tunneling amplitudes of matrix models. Their form suggests that the flat coordinates of the Calabi-Yau manifold are naturally quantized in units of the string coupling constant, as postulated in large $N$ dualities. Based on our results we obtain a general picture for the resurgent structure of the topological string in the local case, which we illustrate with explicit calculations for local $\mathbb{P}^2$.https://scipost.org/SciPostPhys.15.4.179
spellingShingle Jie Gu, Marcos Mariño
Exact multi-instantons in topological string theory
SciPost Physics
title Exact multi-instantons in topological string theory
title_full Exact multi-instantons in topological string theory
title_fullStr Exact multi-instantons in topological string theory
title_full_unstemmed Exact multi-instantons in topological string theory
title_short Exact multi-instantons in topological string theory
title_sort exact multi instantons in topological string theory
url https://scipost.org/SciPostPhys.15.4.179
work_keys_str_mv AT jiegumarcosmarino exactmultiinstantonsintopologicalstringtheory