Inflation on moduli space and cosmic perturbations

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dc.contributor.authorKadota K.ko
dc.contributor.authorStewart, Ewan Dko
dc.date.accessioned2013-03-03T13:16:05Z-
dc.date.available2013-03-03T13:16:05Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued2003-
dc.identifier.citationJOURNAL OF HIGH ENERGY PHYSICS, no.12-
dc.identifier.issn1029-8479-
dc.identifier.urihttp://hdl.handle.net/10203/78816-
dc.description.abstractWe show that a moduli space of the form predicted by string theory, lifted by supersymmetry breaking, gives rise to successful inflation for large regions of parameter space without any modification or fine tuning. This natural realization of inflation relies crucially on the complex nature of the moduli fields and the multiple points of enhanced symmetry, which are generic features of moduli space but not usually considered in inflationary model building. Our scenario predicts cosmic perturbations with an almost exactly flat spectrum for a wide range of scales with running on smaller, possibly observable, scales. The running takes the form of either an increasingly steep drop off of the spectrum, or a rise to a bump in the spectrum before an increasingly steep drop off.-
dc.languageEnglish-
dc.publisherSPRINGER-
dc.subjectSTRING THEORY-
dc.subjectCOSMOLOGY-
dc.subjectSYMMETRIES-
dc.subjectFLATNESS-
dc.subjectUNIVERSE-
dc.subjectHORIZON-
dc.subjectMODELS-
dc.titleInflation on moduli space and cosmic perturbations-
dc.typeArticle-
dc.identifier.wosid000189361600008-
dc.identifier.scopusid2-s2.0-23044502887-
dc.type.rimsART-
dc.citation.issue12-
dc.citation.publicationnameJOURNAL OF HIGH ENERGY PHYSICS-
dc.contributor.localauthorStewart, Ewan D-
dc.contributor.nonIdAuthorKadota K.-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorcosmology of theories beyond the SM-
dc.subject.keywordAuthorphysics of the early universe-
dc.subject.keywordPlusSTRING THEORY-
dc.subject.keywordPlusCOSMOLOGY-
dc.subject.keywordPlusSYMMETRIES-
dc.subject.keywordPlusFLATNESS-
dc.subject.keywordPlusUNIVERSE-
dc.subject.keywordPlusHORIZON-
dc.subject.keywordPlusMODELS-
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