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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2018
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/1811.00063 |
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| _version_ | 1866910870517317632 |
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| author | Andriolo, Stefano Shiu, Gary Triendl, Hagen Van Riet, Thomas Venken, Victoria Zoccarato, Gianluca |
| author_facet | Andriolo, Stefano Shiu, Gary Triendl, Hagen Van Riet, Thomas Venken, Victoria Zoccarato, Gianluca |
| contents | We construct novel classes of compact G2 spaces from lifting type IIA flux backgrounds with O6 planes. There exists an extension of IIA Calabi-Yau orientifolds for which some of the D6 branes (required to solve the RR tadpole) are dissolved in $F_2$ fluxes. The backreaction of these fluxes deforms the Calabi-Yau manifold into a specific class of SU(3)-structure manifolds. The lift to M-theory again defines compact G2 manifolds, which in case of toroidal orbifolds are a twisted generalisation of the Joyce construction. This observation also allows a clear identification of the moduli space of a warped compactification with fluxes. We provide a few explicit examples, of which some can be constructed from T-dualising known IIB orientifolds with fluxes. Finally we discuss supersymmetry breaking in this context and suggest that the purely geometric picture in M-theory could provide a simpler setting to address some of the consistency issues of moduli stabilisation and de Sitter uplifting. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1811_00063 |
| institution | arXiv |
| publishDate | 2018 |
| record_format | arxiv |
| spellingShingle | Compact G2 holonomy spaces from SU(3) structures Andriolo, Stefano Shiu, Gary Triendl, Hagen Van Riet, Thomas Venken, Victoria Zoccarato, Gianluca High Energy Physics - Theory We construct novel classes of compact G2 spaces from lifting type IIA flux backgrounds with O6 planes. There exists an extension of IIA Calabi-Yau orientifolds for which some of the D6 branes (required to solve the RR tadpole) are dissolved in $F_2$ fluxes. The backreaction of these fluxes deforms the Calabi-Yau manifold into a specific class of SU(3)-structure manifolds. The lift to M-theory again defines compact G2 manifolds, which in case of toroidal orbifolds are a twisted generalisation of the Joyce construction. This observation also allows a clear identification of the moduli space of a warped compactification with fluxes. We provide a few explicit examples, of which some can be constructed from T-dualising known IIB orientifolds with fluxes. Finally we discuss supersymmetry breaking in this context and suggest that the purely geometric picture in M-theory could provide a simpler setting to address some of the consistency issues of moduli stabilisation and de Sitter uplifting. |
| title | Compact G2 holonomy spaces from SU(3) structures |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/1811.00063 |