Kahler moduli inflation revisited
We perform a detailed numerical analysis of inflationary solutions in Kahler moduli of type IIB flux compactifications. We show that there are inflationary solutions even when all the fields play an important role in the overall shape of the scalar potential. Moreover, there exists a direction of at...
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| Main Authors: | , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
January 19, 2010
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| In: |
Journal of high energy physics
Year: 2010, Issue: 1, Pages: 81 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP01(2010)081 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP01(2010)081
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| Author Notes: | Jose J. Blanco-Pillado, Duncan Buck, Edmund J. Copeland, Marta Gomez-Reino and Nelson J. Nunes |
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| 520 | |a We perform a detailed numerical analysis of inflationary solutions in Kahler moduli of type IIB flux compactifications. We show that there are inflationary solutions even when all the fields play an important role in the overall shape of the scalar potential. Moreover, there exists a direction of attraction for the inflationary trajectories that correspond to the constant volume direction. This basin of attraction enables the system to have an island of stability in the set of initial conditions. We provide explicit examples of these trajectories, compute the corresponding tilt of the density perturbations power spectrum and show that they provide a robust prediction of ns≈ 0.96 for 60 e-folds of inflation. | ||
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