Stochastic emergence of inflaton fluctuations in a SdS primordial universe with large-scale repulsive gravity from a 5D vacuum
arXiv:1005.1232 · doi:10.1140/epjp/i2011-11056-2
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.
arXiv commentversion accepted in European Physical Journal Plus
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- The primordial explosion of a false white hole from a 5D vacuum
- Gravitational waves during inflation from a 5D large-scale repulsive gravity model
- Scalar fluctuations of the scalar metric during inflation from a non-perturbative 5D large-scale repulsive gravity model