Results 21 to 30 of about 667,232 (161)

On the flux vacua in F-theory compactifications

open access: yesPhysics Letters B, 2017
We study moduli stabilization of the F-theory compactified on an elliptically fibered Calabi–Yau fourfold. Our setup is based on the mirror symmetry framework including brane deformations.
Yoshinori Honma, Hajime Otsuka
doaj   +3 more sources

Special points of inflation in flux compactifications

open access: yesNuclear Physics B, 2015
We study the realization of axion inflation models in the complex structure moduli spaces of Calabi–Yau threefolds and fourfolds. The axions arise close to special points of these moduli spaces that admit discrete monodromy symmetries of infinite order ...
Iñaki García-Etxebarria   +2 more
doaj   +4 more sources

Maximal supergravity from IIB flux compactifications [PDF]

open access: yesPhysics Letters B, 2004
Using a recently proposed group-theoretical approach, we explore novel gaugings of maximal supergravity in four dimensions with gauge group embeddings that can be generated by fluxes of IIB string theory. The corresponding potentials are positive without stationary points.
B. DE WIT   +2 more
openaire   +6 more sources

Calabi-Yau period geometry and restricted moduli in Type II compactifications [PDF]

open access: yesJournal of High Energy Physics
The period geometry of Calabi-Yau n-folds — characterised by their variations of Hodge structure governed by Griffiths transversality, a graded Frobenius algebra, an integral monodromy and an intriguing arithmetic structure — is analysed for applications
Janis Dücker   +2 more
doaj   +2 more sources

Aspects of finite temperature corrections in string theory [PDF]

open access: yes, 2011
PhDIn this thesis some aspects of temperature corrections in string theory are analyzed: in particular, we study the thermal contributions to the 4 dimensional effective potential arising from string theory compactifications.
Calo, Vincenzo
core   +4 more sources

Exceptional flux compactifications [PDF]

open access: yesJournal of High Energy Physics, 2012
AbstractWe consider type II (non-)geometric flux backgrounds in the absence of brane sources, and construct their explicit embedding into maximal gaugedD= 4 supergravity. This enables one to investigate the critical points, mass spectra and gauge groups of such backgrounds.
Giuseppe Dibitetto   +2 more
openaire   +5 more sources

Meromorphic flux compactification [PDF]

open access: yesJournal of High Energy Physics, 2017
33 pages, 1 figure. v2: References added. v3: Some clarifications added, index notation refined, minor changes.
Damian, Cesar, Loaiza-Brito, Oscar
openaire   +3 more sources

Compactification with flux on K3 and tori [PDF]

open access: yesJournal of High Energy Physics, 2003
Discussion of susy breaking vacua significantly ...
Tripathy, Prasanta K.   +1 more
openaire   +3 more sources

Comments on heterotic flux compactifications [PDF]

open access: yesJournal of High Energy Physics, 2006
In heterotic flux compactification with supersymmetry, three different connections with torsion appear naturally, all in the form $ω+a H$. Supersymmetry condition carries $a=-1$, the Dirac operator has $a=-1/3$, and higher order term in the effective action involves $a=1$. With a view toward the gauge sector, we explore the geometry with such torsions.
Kimura, Tetsuji, Yi, Piljin
openaire   +2 more sources

Dynamics of warped flux compactifications [PDF]

open access: yesJournal of High Energy Physics, 2008
We discuss the four dimensional effective action for type IIB flux compactifications, and obtain the quadratic terms taking warp effects into account. The analysis includes both the 4-d zero modes and their KK excitations, which become light at large warping.
Shiu, Man Lai Gary   +3 more
openaire   +3 more sources

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