String moduli inflation: An overview

Cicoli, M.; Quevedo, F.

doi:10.1088/0264-9381/28/20/204001

Journal Article

PHPPUBDB-17820

String moduli inflation: An overview

Cicoli, M. ; Quevedo, F. ; DESY

2011
IOP Publ. Bristol

Classical and quantum gravity 28(20), 204001 (2011) [10.1088/0264-9381/28/20/204001]

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Please use a persistent id in citations: doi:10.1088/0264-9381/28/20/204001

Report No.: DESY-11-088; arXiv:1108.2659

Abstract: We present an overview of inflationary models derived from string theory focusing mostly on closed string moduli as inflatons. After a detailed discussion of the eta-problem and different approaches to address it, we describe possible ways to obtain a de Sitter vacuum with all closed string moduli stabilised. We then look for inflationary directions and present some of the most promising scenarios where the inflatons are either the real or the imaginary part of Kaehler moduli. We pay particular attention on extracting potential observable implications, showing how most of the scenarios predict negligible gravitational waves and could therefore be ruled out by the Planck satellite. We conclude by briefly mentioning some open challenges in string cosmology beyond deriving just inflation.

Keyword(s): moduli: string ; string: closed ; moduli: stability ; moduli: Kaehler ; vacuum state: de Sitter ; inflation: model ; inflaton

Classification:

ddc:530

Note: 20 pages, 1 figure, invited contribution for a special CQG issue on String Cosmology. Typos corrected and references added

Contributing Institute(s):

Theorie-Gruppe (T)

Research Program(s):

51x - Programm Elementarteilchenphysik - Topic unbekannt (POF2-51x) (POF2-51x)

Experiment(s):

No specific instrument

Appears in the scientific report 2011
Notes: (c) IOP Publishing

Database coverage:
Medline

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