Results 71 to 80 of about 1,108,912 (218)

New non-supersymmetric flux vacua in string theory

open access: yesJournal 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
doaj   +1 more source

Universal properties of type IIB and F-theory flux compactifications at large complex structure [PDF]

open access: yes, 2015
A bstractWe consider flux compactifications of type IIB string theory and F-theory in which the respective superpotentials at large complex structure are dominated by cubic or quartic terms in the complex structure moduli.
M. C. Marsh, Kepa Sousa, Kepa Sousa
semanticscholar   +1 more source

Hypercharge flux in heterotic compactifications

open access: yesPhysical 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
openaire   +3 more sources

Compactifying 5d superconformal field theories to 3d

open access: yesJournal 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
doaj   +1 more source

Flux compactifications in Einstein-Born-Infeld theories [PDF]

open access: yes, 2015
We investigate the flux compactification mechanism in simple toy models of Einstein-Born-Infeld theories. These are the direct generalizations of the Einstein-Maxwell flux compactifications that recently gained fame as a toy model for tunneling in the ...
H. S. Ramadhan, Brian A. Cahyo, M. Iqbal
semanticscholar   +1 more source

Lectures on nongeometric flux compactifications [PDF]

open access: yesClassical and Quantum Gravity, 2007
These notes present a pedagogical review of nongeometric flux compactifications. We begin by reviewing well-known geometric flux compactifications in Type II string theory, and argue that one must include nongeometric "fluxes" in order to have a superpotential which is invariant under T-duality.
openaire   +2 more sources

Helical phase inflation via non-geometric flux compactifications: from natural to starobinsky-like inflation [PDF]

open access: yes, 2015
A bstractWe show that a new class of helical phase inflation models can be simply realized in minimal supergravity, wherein the inflaton is the phase component of a complex field and its potential admits a deformed helicoid structure.
Tianjun Li, Zhijin Li, D. Nanopoulos
semanticscholar   +1 more source

Hierarchies from fluxes in string compactifications [PDF]

open access: yesPhysical 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
openaire   +2 more sources

The tadpole conjecture at large complex-structure

open access: yesJournal of High Energy Physics, 2022
The tadpole conjecture by Bena, Blåbäck, Graña and Lüst effectively states that for string-theory compactifications with a large number of complex-structure moduli, not all of these moduli can be stabilized by fluxes.
Erik Plauschinn
doaj   +1 more source

Fluxes in exceptional field theory and threebrane sigma-models

open access: yesJournal 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
doaj   +1 more source

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