D-instantons in Type IIA string theory on Calabi-Yau threefolds

Abstract Type IIA string theory compactified on a Calabi-Yau threefold has a hypermultiplet moduli space whose metric is known to receive non-perturbative corrections from Euclidean D2-branes wrapped on 3-cycles. These corrections have been computed earlier by making use of mirror symmetry, S-dualit...

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Autores principales:	Sergei Alexandrov, Ashoke Sen, Bogdan Stefański
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	D-branes Nonperturbative Effects Superstrings and Heterotic Strings Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/6e850e1d09b34828b4ad50e954d8f797
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spelling	oai:doaj.org-article:6e850e1d09b34828b4ad50e954d8f7972021-11-08T11:16:27ZD-instantons in Type IIA string theory on Calabi-Yau threefolds10.1007/JHEP11(2021)0181029-8479https://doaj.org/article/6e850e1d09b34828b4ad50e954d8f7972021-11-01T00:00:00Zhttps://doi.org/10.1007/JHEP11(2021)018https://doaj.org/toc/1029-8479Abstract Type IIA string theory compactified on a Calabi-Yau threefold has a hypermultiplet moduli space whose metric is known to receive non-perturbative corrections from Euclidean D2-branes wrapped on 3-cycles. These corrections have been computed earlier by making use of mirror symmetry, S-duality and twistorial description of quaternionic geometries. In this paper we compute the leading corrections in each homology class using a direct world-sheet approach without relying on any duality symmetry or supersymmetry. Our results are in perfect agreement with the earlier predictions.Sergei AlexandrovAshoke SenBogdan StefańskiSpringerOpenarticleD-branesNonperturbative EffectsSuperstrings and Heterotic StringsNuclear and particle physics. Atomic energy. RadioactivityQC770-798ENJournal of High Energy Physics, Vol 2021, Iss 11, Pp 1-58 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	D-branes Nonperturbative Effects Superstrings and Heterotic Strings Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	D-branes Nonperturbative Effects Superstrings and Heterotic Strings Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Sergei Alexandrov Ashoke Sen Bogdan Stefański D-instantons in Type IIA string theory on Calabi-Yau threefolds
description	Abstract Type IIA string theory compactified on a Calabi-Yau threefold has a hypermultiplet moduli space whose metric is known to receive non-perturbative corrections from Euclidean D2-branes wrapped on 3-cycles. These corrections have been computed earlier by making use of mirror symmetry, S-duality and twistorial description of quaternionic geometries. In this paper we compute the leading corrections in each homology class using a direct world-sheet approach without relying on any duality symmetry or supersymmetry. Our results are in perfect agreement with the earlier predictions.
format	article
author	Sergei Alexandrov Ashoke Sen Bogdan Stefański
author_facet	Sergei Alexandrov Ashoke Sen Bogdan Stefański
author_sort	Sergei Alexandrov
title	D-instantons in Type IIA string theory on Calabi-Yau threefolds
title_short	D-instantons in Type IIA string theory on Calabi-Yau threefolds
title_full	D-instantons in Type IIA string theory on Calabi-Yau threefolds
title_fullStr	D-instantons in Type IIA string theory on Calabi-Yau threefolds
title_full_unstemmed	D-instantons in Type IIA string theory on Calabi-Yau threefolds
title_sort	d-instantons in type iia string theory on calabi-yau threefolds
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/6e850e1d09b34828b4ad50e954d8f797
work_keys_str_mv	AT sergeialexandrov dinstantonsintypeiiastringtheoryoncalabiyauthreefolds AT ashokesen dinstantonsintypeiiastringtheoryoncalabiyauthreefolds AT bogdanstefanski dinstantonsintypeiiastringtheoryoncalabiyauthreefolds
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D-instantons in Type IIA string theory on Calabi-Yau threefolds

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