Parametric amplification of metric fluctuations through a bouncing phase
Jul, 2003Citations per year
Abstract:
We clarify the properties of the behavior of classical cosmological perturbations when the Universe experiences a bounce. This is done in the simplest possible case for which gravity is described by general relativity and the matter content has a single component, namely a scalar field in a closed geometry. We show in particular that the spectrum of scalar perturbations can be affected by the bounce in a way that may depend on the wave number, even in the large scale limit. This may have important implications for string motivated models of the early Universe.- 98.70.Vc
- 98.80.Cq
- cosmological model
- Einstein equation: solution
- space-time: fluctuation
- transfer matrix
- bibliography
References(58)
Figures(0)