de Sitter Vacua in Type IIB String Theory: Classical Solutions and Quantum Corrections
arXiv:1402.5112 · doi:10.1007/JHEP07(2014)054
Abstract
We revisit the classical theory of ten-dimensional two-derivative gravity coupled to fluxes, scalar fields, D-branes, anti D-branes and Orientifold-planes. We show that such set-ups do not give rise to a four-dimensional positive curvature spacetime with the isometries of de Sitter spacetime. We further argue that a de Sitter solution in type IIB theory may still be achieved if the higher-order curvature corrections are carefully controlled. Our analysis relies on the derivation of the de Sitter condition from an explicit background solution by going beyond the supergravity limit of type IIB theory. As such this also tells us how the background supersymmetry should be broken and under what conditions D-term uplifting can be realized with non self-dual fluxes.
44 pages, pdfLaTex; v2: Arguments in sec 3.2 more streamlined, figure removed, discussions on quantum corrections elaborated, typos corrected and references added; v3: Improved discussions on the O-planes contributions. Conclusions unchanged. Final version to appear in JHEP
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