Confronting quasi-exponential inflation with WMAP seven

Details Confronting quasi-exponential inflation with WMAP seven Confronting quasi-exponential inflation with WMAP seven

2011-05-31

arxiv.org/abs/1105.6362v3

JCAP 04, 009 (2012)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

7 pages, 7 figures, Accepted for publication in JCAP

Scientific paper

10.1088/1475-7516/2012/04/009

We confront quasi-exponential models of inflation with WMAP seven years dataset using Hamilton Jacobi formalism. With a phenomenological Hubble parameter, representing quasi exponential inflation, we develop the formalism and subject the analysis to confrontation with WMAP seven using the publicly available code CAMB. The observable parameters are found to fair extremely well with WMAP seven. We also obtain a ratio of tensor to scalar amplitudes which may be detectable in PLANCK.

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