Friday, December 21, 2012

1212.4987 (Remo Garattini et al.)

Does Gravity's Rainbow induce Inflation without an Inflaton?    [PDF]

Remo Garattini, Mairi Sakellariadou
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.
View original: http://arxiv.org/abs/1212.4987

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