Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 3, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2008/03/015
Keywords
string theory and cosmology; inflation; cosmology of theories beyond the SM
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Chaotic inflation predicts a large gravitational wave signal which can be tested by the upcoming Planck satellite. We discuss a supergravity implementation of chaotic inflation in the presence of moduli Fields, and find that inflation does not work with a generic Kachru-Kallosh-Linde-Trivedi moduli stabilization potential. A viable model can be constructed with a fine-tuned moduli sector, but only for a very specific choice of Kahler potential. Our analysis also shows that inflation models satisfying. partial derivative W-i(inf) = 0 for all inflation sector fields phi(i) can be combined successfully with a fine-tuned moduli sector.
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