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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Detalles Bibliográficos
Autores principales: Blanco-Pillado, Jose J., Buck, Duncan, Copeland, Edmund J., Gomez-Reino, Marta, Nunes, Nelson J.
Lenguaje:eng
Publicado: 2009
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1007/JHEP01(2010)081
http://cds.cern.ch/record/1185219
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author Blanco-Pillado, Jose J.
Buck, Duncan
Copeland, Edmund J.
Gomez-Reino, Marta
Nunes, Nelson J.
author_facet Blanco-Pillado, Jose J.
Buck, Duncan
Copeland, Edmund J.
Gomez-Reino, Marta
Nunes, Nelson J.
author_sort Blanco-Pillado, Jose J.
collection CERN
description 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.
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spelling cern-11852192023-03-14T19:01:48Zdoi:10.1007/JHEP01(2010)081http://cds.cern.ch/record/1185219engBlanco-Pillado, Jose J.Buck, DuncanCopeland, Edmund J.Gomez-Reino, MartaNunes, Nelson J.Kahler Moduli Inflation RevisitedParticle Physics - TheoryWe 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.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.arXiv:0906.3711CERN-PH-TH-2009-088HD-THEP-09-12CERN-PH-TH-2009-088HD-THEP-09-12oai:cds.cern.ch:11852192009-06-22
spellingShingle Particle Physics - Theory
Blanco-Pillado, Jose J.
Buck, Duncan
Copeland, Edmund J.
Gomez-Reino, Marta
Nunes, Nelson J.
Kahler Moduli Inflation Revisited
title Kahler Moduli Inflation Revisited
title_full Kahler Moduli Inflation Revisited
title_fullStr Kahler Moduli Inflation Revisited
title_full_unstemmed Kahler Moduli Inflation Revisited
title_short Kahler Moduli Inflation Revisited
title_sort kahler moduli inflation revisited
topic Particle Physics - Theory
url https://dx.doi.org/10.1007/JHEP01(2010)081
http://cds.cern.ch/record/1185219
work_keys_str_mv AT blancopilladojosej kahlermoduliinflationrevisited
AT buckduncan kahlermoduliinflationrevisited
AT copelandedmundj kahlermoduliinflationrevisited
AT gomezreinomarta kahlermoduliinflationrevisited
AT nunesnelsonj kahlermoduliinflationrevisited

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