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arXiv · 1005.1232

Stochastic emergence of inflaton fluctuations in a SdS primordial universe with large-scale repulsive gravity from a 5D vacuum

Luz Marina Reyes·Jose Edgar Madriz Aguilar·Mauricio Bellini
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Abstract

We develop a stochastic approach to study scalar field fluctuations of the inflaton field in an early inflationary universe with a black-hole (BH), which is described by an effective 4D SdS metric. Considering a 5D Ricci-flat SdS static metric, we implement a planar coordinate transformation, in order to obtain a 5D cosmological metric, from which the effective 4D SdS metric can be induced on a 4D hypersurface. We found that at the end of inflation, the squared fluctuations of the inflaton field are not exactly scale independent and becomes sensitive with the mass of the BH.

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Luz Marina Reyes, Jose Edgar Madriz Aguilar, Mauricio Bellini. 2011-05-29. Stochastic emergence of inflaton fluctuations in a SdS primordial universe with large-scale repulsive gravity from a 5D vacuum. https://doi.org/10.1140/epjp/i2011-11056-2

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