Results 41 to 50 of about 667,232 (161)
No-go theorems for ekpyrosis from ten-dimensional supergravity
Journal of High Energy Physics, 2018 In this note we investigate whether the new ekpyrotic scenario can be embedded into ten-dimensional supergravity. We use that the scalar potential obtained from flux compactifications of type II supergravity with sources has a universal scaling with ...
Kunihito Uzawa
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Nothing is certain in string compactifications
Journal of High Energy Physics, 2020 A bubble of nothing is a spacetime instability where a compact dimension collapses. After nucleation, it expands at the speed of light, leaving “nothing” behind.
Iñaki García Etxebarria +3 more
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The fate of unstable gauge flux compactifications [PDF]
Journal of High Energy Physics, 2009 1 figure, 33 pages. Reference added, typos corrected.
Burgess, C. P. +2 more
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Moduli space holography and the finiteness of flux vacua
Journal of High Energy Physics, 2021 A holographic perspective to study and characterize field spaces that arise in string compactifications is suggested. A concrete correspondence is developed by studying two-dimensional moduli spaces in supersymmetric string compactifications.
Thomas W. Grimm
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Flux compactifications grow lumps
Physical Review D, 2014 The simplest flux compactifications are highly symmetric---a $q$-form flux is wrapped uniformly around an extra-dimensional $q$-sphere. In this paper, we investigate solutions that break the internal SO($q+1$) symmetry down to SO$(q)\times\mathbb Z_2$; we find a large number of such lumpy solutions, and show that often at least one of them has lower ...
Dahlen, Alex, Zukowski, Claire
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New non-supersymmetric flux vacua in string theory
Journal of High Energy Physics, 2023 In this note we construct large ensembles of supersymmetry breaking solutions arising in the context of flux compactifications of type IIB string theory.
S. Krippendorf, A. Schachner
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Hierarchies from fluxes in string compactifications [PDF]
Physical Review D, 2002 Warped compactifications with significant warping provide one of the few known mechanisms for naturally generating large hierarchies of physical scales. We demonstrate that this mechanism is realizable in string theory, and give examples involving orientifold compactifications of IIB string theory and F-theory compactifications on Calabi-Yau four-folds.
Giddings, Steven B. +2 more
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Compactifying 5d superconformal field theories to 3d
Journal of High Energy Physics, 2021 Building on recent progress in the study of compactifications of 6d (1, 0) superconformal field theories (SCFTs) on Riemann surfaces to 4d N $$ \mathcal{N} $$ = 1 theories, we initiate a systematic study of compactifications of 5d N $$ \mathcal{N} $$ = 1
Matteo Sacchi, Orr Sela, Gabi Zafrir
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Fluxes in exceptional field theory and threebrane sigma-models
Journal of High Energy Physics, 2019 Starting from a higher Courant bracket associated to exceptional generalized geometry, we provide a systematic derivation of all types of fluxes and their Bianchi identities for four-dimensional compactifications of M-theory.
Athanasios Chatzistavrakidis +3 more
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Hypercharge flux in heterotic compactifications
Physical Review D, 2015 We study heterotic Calabi-Yau models with hypercharge flux breaking, where the visible E8 gauge group is directly broken to the standard model group by a non-flat gauge bundle, rather than by a two-step process involving an intermediate grand unified theory and a Wilson line.
Anderson, Lara B. +3 more
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