Results 71 to 80 of about 89,245 (176)
Comments on classical AdS flux vacua with scale separation
Journal of High Energy Physics, 2022 AdS flux vacua with a parametric separation between the AdS and KK scales have been conjectured to be in the Swampland. We study flux compactifications of massive IIA supergravity with O6 planes which are claimed to allow moduli-stabilised and scale ...
Fien Apers +3 more
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Journal of High Energy Physics, 2020 Geometric modularity has recently been conjectured to be a characteristic feature of flux vacua with W = 0. This paper provides support for the conjecture by computing motivic modular forms in a direct way for several string compactifications for which ...
Rolf Schimmrigk
doaj +1 more source
Journal of High Energy Physics, 2021 We examine the mechanism of moduli stabilization by fluxes in the limit of a large number of moduli. We conjecture that one cannot stabilize all complex-structure moduli in F-theory at a generic point in moduli space (away from singularities) by fluxes ...
Iosif Bena +3 more
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Flux Compactification of M-theory on Compact Manifolds with Spin(7) Holonomy [PDF]
Fortsch.Phys. 53 (2005) 1272-1329, 2005 At the leading order, M-theory admits minimal supersymmetric compactifications if the internal manifold has exceptional holonomy. The inclusion of non-vanishing fluxes in M-theory and string theory compactifications induce a superpotential in the lower dimensional theory, which depends on the fluxes. In this work, we verify the conjectured form of this
arxiv +1 more source
Heterotic String Theory with Background Fluxes [PDF]
Nucl.Phys.B626:26-52,2002, 2001 We discuss compactifications of the heterotic string in the presence of background fluxes. Specifically we consider compactifications on T^6, T^5, K3 x T^2 and K3 x S^1 for which we derive the bosonic sector of the low energy effective action. The consistency with the corresponding gauged supergravities is demonstrated.
arxiv +1 more source
Compactification of IIB Theory with Fluxes and Axion-Dilaton String Cosmology [PDF]
Int.J.Mod.Phys.A25:3797-3816,2010, 2009 Compactification of type IIB theory on torus, in the presence of fluxes, is considered. The reduced effective action is expressed in manifestly S-duality invariant form. Cosmological solutions of the model are discussed in several cases in the Pre-Big Bang scenario.
arxiv +1 more source
Dynamics of Warped Flux Compactifications
, 2008 We discuss the four dimensional effective action for type IIB flux compactifications, and obtain the quadratic terms taking warp effects into account.
A. Ceresole +54 more
core +2 more sources
Engineering small flux superpotentials and mass hierarchies
Journal of High Energy Physics, 2023 We study the stabilization of complex structure moduli in Type IIB flux compactifications by using recent general results about the form of the superpotential and Kähler potential near the boundaries of the moduli space. In this process we show how vacua
Brice Bastian +2 more
doaj +1 more source
3-Form Flux Compactification of Salam-Sezgin Supergravity [PDF]
JHEP 0910:086,2009, 2009 The compactification of 6 dimensional Salam-Sezgin model in the presence of 3-form flux H is investigated. We find a torus topology for this compactification with two cusps which are the places of branes, while at the limit of large size L of the compact direction we also obtain sphere topology. This resembles the Randall-Sundrum I,II model. The branes
arxiv +1 more source
Cosmological Perturbations in Flux Compactifications
, 2004 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.
Chen C-M +16 more
core +1 more source