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arXiv · 1412.7931

Scale-free power spectrums in the delayed cosmology

Shi-hui Yang·Ding-fang Zeng
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Abstract

The delayed cosmology [JCAP 02(2012)046] assumes that the evolution of geometries is delayed relative to that of matter and/or energies. This idea allows inflation occur without inflaton fields or vacuum energies of any kind as drivings. We considered the production and evolution of primordial perturbations in this model. The results indicate that, with delaying, we could get a nearly scale-free power spectrum of perturbations starting from a radiation dominated early universe.

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Shi-hui Yang, Ding-fang Zeng. 2014-12-26. Scale-free power spectrums in the delayed cosmology. https://doi.org/10.1103/physrevd.93.043507

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