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arxiv: 1208.1160 · v3 · pith:VJOM6R6Enew · submitted 2012-08-06 · ✦ hep-th · gr-qc

Moduli Stabilization and Inflationary Cosmology with Poly-Instantons in Type IIB Orientifolds

Ralph Blumenhagen , Xin Gao , Thorsten Rahn , Pramod Shukla This is my paper
classification ✦ hep-th gr-qc
keywords cosmologyinflationarykaehlermodulimodulusorientifoldspoly-instantonstabilization
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Equipped with concrete examples of Type IIB orientifolds featuring poly-instanton corrections to the superpotential, the effects on moduli stabilization and inflationary cosmology are analyzed. Working in the framework of the LARGE volume scenario, the Kaehler modulus related to the size of the four-cycle supporting the poly-instanton contributes sub-dominantly to the scalar potential. It is shown that this Kaehler modulus gets stabilized and, by displacing it from its minimum, can play the role of an inflaton. Subsequent cosmological implications are discussed and compared to experimental data.

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