Pre-inflation physics and scalar perturbations

Details Pre-inflation physics and scalar perturbations Pre-inflation physics and scalar perturbations

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005cqgra..22.1239h&link_type=abstract

Classical and Quantum Gravity, Volume 22, Issue 7, pp. 1239-1254 (2005).

Physics

6

Scientific paper

The effect of pre-inflation physics on the power spectrum of scalar perturbations is investigated. Considering various pre-inflation models with radiation-dominated or matter-dominated periods before inflation, the power spectra of curvature perturbations for large scales are calculated, and the spectral index and running spectral index are derived. It is shown that pre-inflation models in which the length of inflation is near 60 e-folds may reproduce some key properties implied by the Wilkinson microwave anisotropy probe data.

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