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Systematics of moduli stabilisation in Calabi-Yau flux compactifications
We study the large volume limit of the scalar potential in Calabi-Yau flux compactifications of type IIB string theory. Under general circumstances there exists a limit in which the potentialExpand
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De Sitter string vacua from supersymmetric D-terms
We propose a new mechanism for obtaining de Sitter vacua in type-IIB string theory compactified on (orientifolded) Calabi-Yau manifolds similar to those recently studied by Kachru, Kallosh, Linde andExpand
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Fibre inflation: observable gravity waves from IIB string compactifications
We introduce a simple string model of inflation, in which the inflaton field can take trans-Planckian values while driving a period of slow-roll inflation. This leads naturally to a realisation ofExpand
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Kahler moduli inflation
We show that under general conditions there is at least one natural inflationary direction for the Kahler moduli of type-IIB flux compactifications. This requires a Calabi-Yau which hasExpand
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Duality symmetries from non-abelian isometries in string theory
Abstract In string theory it is known that abelian isometries in the σ-model lead to target space duality. We generalize this duality to background with non-abelian isometries. The procedure weExpand
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Systematics of string loop corrections in type IIB Calabi-Yau flux compactifications
We study the behaviour of the string loop corrections to the N = 1 4D supergravity Kahler potential that occur in flux compactifications of IIB string theory on general Calabi-Yau three-folds. WeExpand
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Towards a Naturally Small Cosmological Constant from Branes in 6D Supergravity
Abstract We investigate the possibility of self-tuning of the effective 4D cosmological constant in 6D supergravity, to see whether it could naturally be of order 1/r4 when compactified on twoExpand
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Astrophysical and cosmological implications of large volume string compactifications
We study the spectrum, couplings and cosmological and astrophysical implications of the moduli fields for the class of Calabi–Yau IIB string compactifications for which moduli stabilisation leads toExpand
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General analysis of LARGE Volume Scenarios with string loop moduli stabilisation
We study the topological conditions for general Calabi-Yaus to get a non-supersymmetric AdS exponentially large volume minimum of the scalar potential in flux compactifications of IIB string theory.Expand
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Realistic D-brane models on warped throats: Fluxes, hierarchies and moduli stabilization
We describe the construction of string theory models with semirealistic spectrum in a sector of (anti) D3-branes located at an orbifold singularity at the bottom of a highly warped throat geometry,Expand
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