Results 51 to 60 of about 9,732 (215)

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, Larisa Jonke, Dieter Lüst, Richard J. Szabo   +3 more
doaj   +1 more source

The tadpole conjecture at large complex-structure

Journal 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

Quantum tunneling in flux compactifications

Journal of Cosmology and Astroparticle Physics, 2009
40 pages, 8 ...
Blanco-Pillado, Jose J., Schwartz-Perlov, Delia, Vilenkin, Alexander   +2 more
openaire   +2 more sources

Cosmological perturbations in flux compactifications [PDF]

Journal of Cosmology and Astroparticle Physics, 2005
Kaluza-Klein compactifications with four-dimensional inflationary geometry combine the attractive idea of higher dimensional models with the attempt to incorporate four-dimensional early-time or late-time cosmology. We analyze the mass spectrum of cosmological perturbations around such compactifications, including the scalar, vector, and tensor sector.
openaire   +2 more sources

Erratum to: Asymptotic flux compactifications and the swampland

Journal of High Energy Physics, 2021
In the original paper a wrong affiliation has been assigned to author Chongchuo Li during the typesetting.
Thomas W. Grimm, Chongchuo Li, Irene Valenzuela   +2 more
doaj   +1 more source

On mysteriously missing T-duals, H-flux and the T-duality group

, 2004
A general formula for the topology and H-flux of the T-duals of type II string theories with H-flux on toroidal compactifications is presented here.
Mathai, Varghese, Rosenberg, Jonathan
core   +1 more source

Charting the landscape of N=4 flux compactifications [PDF]

, 2011
We analyse the vacuum structure of isotropic Z_2 x Z_2 flux compactifications, allowing for a single set of sources. Combining algebraic geometry with supergravity techniques, we are able to classify all vacua for both type IIA and IIB backgrounds with ...
A Font, A Guarino, A Saltman, Adolfo Guarino, AR Frey, B Carlos de, B Carlos de, BTP Gianni, C Caviezel, C Caviezel, CM Hull, CM Hull, D Cox, D Lüst, D Roest, D Roest, Diederik Roest, DZ Freedman, E Cremmer, E Silverstein, EA Bergshoeff, EA Bergshoeff, G Aldazabal, G Aldazabal, G Aldazabal, G Aldazabal, G Dall’Agata, G Dall’Agata, G Dibitetto, G Villadoro, G-M Greuel, Giuseppe Dibitetto, J Gray, J Gray, J Gray, J Schon, J Shelton, J-P Derendinger, JP Derendinger, M Graña, M Roo de, M Roo de, M Roo de, M Roo de, MP Hertzberg, N Bobev, O DeWolfe, O DeWolfe, P Koerber, PG Camara, PK Townsend, R Flauger, S Kachru, SB Giddings, SS Haque, T Fischbacher, UH Danielsson   +56 more
core   +4 more sources

Warped flux compactification and brane gravity [PDF]

Journal of Cosmology and Astroparticle Physics, 2005
We find a simple exact solution of 6-dimensional braneworld which captures some essential features of warped flux compactification, including a warped geometry, compactification, a magnetic flux, and one or two 3-brane(s). In this setup we analyze how the Hubble expansion rate on each brane changes when the brane tension changes.
Mukohyama, Shinji, Sendouda, Yuuiti, Yoshiguchi, Hiroyuki, Kinoshita, Shunichiro   +3 more
openaire   +2 more sources

Generalised Geometry and Flux Vacua

, 2015
This note discusses the connection between generalised geometry and flux compactifications of string theory. Firstly, we explain in a pedestrian manner how the supersymmetry constraints of type II ${\mathcal{N}}=1$ flux compactifications can be restated ...
Larfors, Magdalena
core   +1 more source

Moduli identification methods in Type II compactifications

Journal of High Energy Physics, 2018
Recent work on four dimensional effective descriptions of the heterotic string has identified the moduli of such systems as being given by kernels of maps between ordinary Dolbeault cohomology groups.
James Gray, Hadi Parsian
doaj   +1 more source