Running Spectral Index in Noncommutative Inflation and WMAP Three Year Results

Details Running Spectral Index in Noncommutative Inflation and WMAP Three Year Results Running Spectral Index in Noncommutative Inflation and WMAP Three Year Results

2006-03-29

arxiv.org/abs/astro-ph/0603782v2

Nucl.Phys. B755 (2006) 286-294

Astronomy and Astrophysics

Astrophysics

11 pages, 2 figures, harvmac, version for publication in NPB

Scientific paper

10.1016/j.nuclphysb.2006.08.023

A model independent analysis shows that the running of the spectral index of
the three year WMAP results can be nicely realized in noncommutative inflation.
We also re-examine some concrete noncommutative inflation models. We find that
a large tensor-scalar ratio is required, corresponding to a low number of
e-folds before the end of inflation in some simple models.

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