Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-06-19
JHEP 1001:1023,2010
Physics
High Energy Physics
High Energy Physics - Theory
27 pages, 9 figures
Scientific paper
10.1007/JHEP01(2010)081
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 n_s approximately 0.96 for 60 e-folds of inflation.
Blanco-Pillado Jose J.
Buck Duncan
Copeland Edmund J.
Gomez-Reino Marta
Nunes Nelson J.
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