Spin(7) compactifications and 1/4-BPS vacua in heterotic supergravity.

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dc.citation.doi10.1007/JHEP03(2016)177en_ZA
dc.citation.issue3en_ZA
dc.contributor.authorAngus, S.
dc.contributor.authorMatti, C.
dc.contributor.authorSvanes, E.E.
dc.date.accessioned2017-03-30T13:52:29Z
dc.date.available2017-03-30T13:52:29Z
dc.date.issued2016-03
dc.description.abstractWe continue the investigation into non-maximally symmetric compactifications of the heterotic string. In particular, we consider compactifications where the internal space is allowed to depend on two or more external directions. For preservation of supersymmetry, this implies that the internal space must in general be that of a Spin(7) manifold, which leads to a 1/4-BPS four-dimensional supersymmetric perturbative vacuum breaking all but one supercharge. We find that these solutions allow for internal geometries previously excluded by the domain-wall-type solutions, and hence the resulting four-dimensional superpotential is more generic. In particular, we find an interesting resemblance to the superpotentials that appear in non-geometric flux compactifications of type II string theory. If the vacua are to be used for phenomenological applications, they must be lifted to maximal symmetry by some non-perturbative or higher-order effect.en_ZA
dc.description.librarianNCS2017en_ZA
dc.identifier.citationAngus, S. Matti, C. and Svanes, E.E.J. 2016. Spin(7) compactifications and 1/4-BPS vacua in heterotic supergravity. Journal of High Energy Physics 2016 (3), Article number 177.en_ZA
dc.identifier.issn1126-6708 (Print)
dc.identifier.issn1029-8479 (Online)
dc.identifier.urihttp://hdl.handle.net/10539/22278
dc.journal.titleJournal of High Energy Physicsen_ZA
dc.journal.volume2016en_ZA
dc.language.isoenen_ZA
dc.publisherSpringer Verlagen_ZA
dc.rights© 2016 Angus, S. et al.; licensee Springer. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0).en_ZA
dc.subjectFlux compactificationsen_ZA
dc.subjectSuperstring Vacuaen_ZA
dc.subjectSuperstringsen_ZA
dc.subjectHeterotic Stringsen_ZA
dc.subjectString theoryen_ZA
dc.subjectcosmic stringsen_ZA
dc.titleSpin(7) compactifications and 1/4-BPS vacua in heterotic supergravity.en_ZA
dc.typeArticleen_ZA
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