New families of scale separated vacua

Abstract Massive type IIA flux compactifications of the form AdS4 × X 6, where X 6 admits a Calabi-Yau metric and O6-planes wrapping three-cycles, display families of vacua with parametric scale separation between the compactification scale and the AdS4 radius, generated by an overall rescaling of i...

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Main Authors: Rafael Carrasco, Thibaut Coudarchet, Fernando Marchesano, David Prieto
Format: Article
Language:English
Published: SpringerOpen 2023-11-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP11(2023)094
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author Rafael Carrasco
Thibaut Coudarchet
Fernando Marchesano
David Prieto
author_facet Rafael Carrasco
Thibaut Coudarchet
Fernando Marchesano
David Prieto
author_sort Rafael Carrasco
collection DOAJ
description Abstract Massive type IIA flux compactifications of the form AdS4 × X 6, where X 6 admits a Calabi-Yau metric and O6-planes wrapping three-cycles, display families of vacua with parametric scale separation between the compactification scale and the AdS4 radius, generated by an overall rescaling of internal four-form fluxes. For toroidal orbifolds one can perform two T-dualities and map this background to an orientifold of massless type IIA compactified on an SU(3)-structure manifold with fluxes. Via a 4d EFT analysis, we generalise this last construction and embed it into new branches of supersymmetric and non-supersymmetric vacua with similar features. We apply our results to propose new infinite families of vacua based on elliptic fibrations with metric fluxes. Parametric scale separation is achieved by an asymmetric flux rescaling which, however, in general is not a simple symmetry of the 4d equations of motion. At this level of approximation the vacua are stable but, unlike in the Calabi-Yau case, they display a non-universal mass spectrum of light fields.
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spelling doaj.art-f5bd312c0267453b874214f6a53623982024-04-21T11:06:28ZengSpringerOpenJournal of High Energy Physics1029-84792023-11-0120231113810.1007/JHEP11(2023)094New families of scale separated vacuaRafael Carrasco0Thibaut Coudarchet1Fernando Marchesano2David Prieto3Instituto de Física Teórica UAM-CSICInstituto de Física Teórica UAM-CSICInstituto de Física Teórica UAM-CSICInstituto de Física Teórica UAM-CSICAbstract Massive type IIA flux compactifications of the form AdS4 × X 6, where X 6 admits a Calabi-Yau metric and O6-planes wrapping three-cycles, display families of vacua with parametric scale separation between the compactification scale and the AdS4 radius, generated by an overall rescaling of internal four-form fluxes. For toroidal orbifolds one can perform two T-dualities and map this background to an orientifold of massless type IIA compactified on an SU(3)-structure manifold with fluxes. Via a 4d EFT analysis, we generalise this last construction and embed it into new branches of supersymmetric and non-supersymmetric vacua with similar features. We apply our results to propose new infinite families of vacua based on elliptic fibrations with metric fluxes. Parametric scale separation is achieved by an asymmetric flux rescaling which, however, in general is not a simple symmetry of the 4d equations of motion. At this level of approximation the vacua are stable but, unlike in the Calabi-Yau case, they display a non-universal mass spectrum of light fields.https://doi.org/10.1007/JHEP11(2023)094Flux CompactificationsSuperstring VacuaString and Brane Phenomenology
spellingShingle Rafael Carrasco
Thibaut Coudarchet
Fernando Marchesano
David Prieto
New families of scale separated vacua
Journal of High Energy Physics
Flux Compactifications
Superstring Vacua
String and Brane Phenomenology
title New families of scale separated vacua
title_full New families of scale separated vacua
title_fullStr New families of scale separated vacua
title_full_unstemmed New families of scale separated vacua
title_short New families of scale separated vacua
title_sort new families of scale separated vacua
topic Flux Compactifications
Superstring Vacua
String and Brane Phenomenology
url https://doi.org/10.1007/JHEP11(2023)094
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