Results 131 to 140 of about 9,732 (215)

Gauge symmetries and matter fields in F-theory models without section- compactifications on double cover and Fermat quartic K3 constructions times K3

open access: yes, 2017
We investigate gauge theories and matter fields in F-theory compactifications on genus-one fibered Calabi-Yau 4-folds without a global section. In this study, genus-one fibered Calabi-Yau 4-folds are built as direct products of a genus-one fibered K3 ...
Kimura, Yusuke
core   +1 more source

Warped branches of flux compactifications [PDF]

open access: yesPhysical Review D, 2012
We consider Freund-Rubin-type compactifications which are described by (p+q)-dimensional Einstein gravity with a positive cosmological constant and a q-form flux. Using perturbative expansions of Kinoshita's ansatz for warped dS_pxS^q and AdS_pxS^q spacetimes, we obtain analytical solutions describing the warped branches and their respective phase ...
openaire   +2 more sources

Racetrack potentials and the de Sitter swampland conjectures

open access: yesJournal of High Energy Physics, 2019
We show that one can find de Sitter critical points (saddle points) in models of flux compactification of Type IIB String Theory without any uplifting terms and in the presence of several moduli.
Jose J. Blanco-Pillado   +2 more
doaj   +1 more source

Low Energy Supersymmetry from Non-Geometry

open access: yes, 2007
We study a class of flux compactifications that have all the moduli stabilised, a high (GUT) string scale and a low (TeV) gravitino mass that is generated dynamically.
A. Achucarro   +53 more
core   +2 more sources

A New Handle on de Sitter Compactifications

open access: yes, 2004
We construct a large new class of de Sitter (and anti de Sitter) vacua of critical string theory from flux compactifications on products of Riemann surfaces. In the construction, the leading effects stabilizing the moduli are perturbative.
  +41 more
core   +1 more source

Massive IIA flux compactifications with dynamical open strings

open access: yesJournal of High Energy Physics
We consider massive type IIA compactifications down to 4 dimensions in presence of O6 planes and D6 branes parallel to them, in order to preserve half-maximal supersymmetry in 4D.
Juan Ramón Balaguer   +4 more
doaj   +1 more source

The AdS5 × S5 superstring. [PDF]

open access: yesProc Math Phys Eng Sci, 2020
Schwarz JH.
europepmc   +1 more source

Heterotic domain wall solutions and SU(3) structure manifolds

open access: yes, 2013
We examine compactifications of heterotic string theory on manifolds with SU(3) structure. In particular, we study N = 1/2 domain wall solutions which correspond to the perturbative vacua of the 4D, N =1 supersymmetric theories associated to these ...
A Aguirre   +76 more
core   +1 more source

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