paper

Does Gravity's Rainbow induce Inflation without an Inflaton?

arXiv:1212.4987 · doi:10.1103/PhysRevD.90.043521

Abstract

We study aspects of quantum cosmology in the presence of a modified space-time geometry. In particular, within the context of Gravity's Rainbow modified geometry, motivated from quantum gravity corrections at the Planck energy scale, we show that the distortion of the metric leads to a Wheeler-De Witt equation whose solution admits outgoing plane waves. Hence, a period of cosmological inflation may arise without the need for introducing an inflaton field.

Published In Phys. Rev. D. Revised version with major modifications about Gravity's Rainbow functions. RevTeX, 13 Pages

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