Pre-inflation models and WMAP data

Details Pre-inflation models and WMAP data Pre-inflation models and WMAP data

2004-04-27

arxiv.org/abs/astro-ph/0404519v1

Astronomy and Astrophysics

Astrophysics

33 pages, 10 figures

Scientific paper

The effect of pre-inflation physics on the power spectrum of scalar perturbations is estimated and there is a possibility that the pre-inflation physics explains the Wilkinson Microwave Anisotropy Probe data if the length of inflation is near 60 e-folds. Considering various pre-inflation models with radiation-dominated or matter-dominated periods before inflation, the power spectrum of curvature perturbations for large scales is calculated, and the spectral index and running spectral index are derived.

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