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de Sitter Vacua in Type IIB String Theory: Classical Solutions and Quantum Corrections

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons79381

Gwyn,  Rhiannon
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, Golm, DE;

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1402.5112.pdf
(Preprint), 414KB

JHEP072014_054.pdf
(beliebiger Volltext), 655KB

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Zitation

Dasgupta, K., Gwyn, R., McDonough, E., Mia, M., & Tatar, R. (2014). de Sitter Vacua in Type IIB String Theory: Classical Solutions and Quantum Corrections. Journal of high energy physics: JHEP, 2014(7): 054. doi:10.1007/JHEP07(2014)054.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0024-76FA-2
Zusammenfassung
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.