Scalar perturbations in a primordial inflationary scenario

Details Scalar perturbations in a primordial inflationary scenario Scalar perturbations in a primordial inflationary scenario

2001-04-04

arxiv.org/abs/hep-th/0104040v1

Phys.Rev. D64 (2001) 084007

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, 2 figures

Scientific paper

10.1103/PhysRevD.64.084007

We compute the spectral index for scalar perturbations generated in a primordial inflationary model. In this model, the transition of the inflationary phase to the radiative era is achieved through the decay of the cosmological term leading a second order phase transition and the characteristics of the model allow to implement a set of initial conditions where the perturbations display a thermal spectrum when they emerge from the horizon. The obtained value for the spectral index is equal to 2, a result that depends very weakly on the various parameters of the model and on the initial conditions used.

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