Results 41 to 50 of about 9,732 (215)

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, Miguel Montero, Kepa Sousa, Irene Valenzuela   +3 more
doaj   +1 more source

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
doaj   +1 more source

Flux Compactifications on Calabi-Yau Threefolds [PDF]

, 2004
The presence of RR and NS three-form fluxes in type IIB string compactification on a Calabi-Yau orientifold gives rise to a nontrivial superpotential W for the dilaton and complex structure moduli. This superpotential is computable in terms of the period
, A. Klemm, A. Maloney, A. Sen, A. Strominger, A.R. Frey, Alexander Giryavets, B. de Wit, B.R. Greene, C. Escoda, C.P. Burgess, C.P. Burgess ., C.S. Chan, D.R. Morrison, E. Silverstein, G. Curio, G.R. Dvali, H. Firouzjahi, I.R. Klebanov, J. Louis, J. Michelson, J.F.G. Cascales, J.F.G. Cascales, J.P. Hsu, K. Becker, K. Becker, K. Dasgupta, L. Andrianopoli, L. Susskind, M. Bianchi, M. Grana, M.R. Douglas, P. Candelas, P. Candelas, P. Mayr, P.G. Camara, P.K. Tripathy, Prasanta K Tripathy, R. D'Auria, R. D'Auria, S. Ashok, S. Chaudhuri, S. Chaudhuri, S. Gukov, S. Hosono, S. Kachru, S. Kachru, S. Kachru, S. Kachru ., S. Sethi, Sandip P Trivedi, Shamit Kachru   +51 more
core   +3 more sources

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., Kachru, Shamit, Polchinski, Joseph   +2 more
openaire   +2 more sources

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
doaj   +1 more source

Three-forms in supergravity and flux compactifications

European Physical Journal C: Particles and Fields, 2017
We present a duality procedure that relates conventional four-dimensional matter-coupled $$\mathcal{N}=1$$ N = 1 supergravities to dual formulations in which auxiliary fields are replaced by field strengths of gauge three-forms.
Fotis Farakos, Stefano Lanza, Luca Martucci, Dmitri Sorokin   +3 more
doaj   +1 more source

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
doaj   +1 more source

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., Constantin, Andrei, Lee, Seung-Joo, Lukas, Andre   +3 more
openaire   +3 more sources

A toolkit for perturbing flux compactifications [PDF]

Journal of High Energy Physics, 2011
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Gandhi, Sohang, Mcallister, Liam, Sjörs, Stefan   +2 more
openaire   +3 more sources

Type IIB flux compactifications with h 1,1 = 0

Journal of High Energy Physics, 2022
We revisit flux compactifications of type IIB string theory on ‘spaces’ dual to rigid Calabi-Yau manifolds. This rather unexplored part of the string landscapes harbors many interesting four-dimensional solutions, namely supersymmetric N $$ \mathcal{N} $$
Jacob Bardzell, Eduardo Gonzalo, Muthusamy Rajaguru, Danielle Smith, Timm Wrase   +4 more
doaj   +1 more source