New Issues in the Inflationary Scenario

Details New Issues in the Inflationary Scenario New Issues in the Inflationary Scenario

2004-11-11

arxiv.org/abs/gr-qc/0411058v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, Invited contribution for the 'New Talents' Session for the Proceedings of the 42nd International School of Subnuclea

Scientific paper

We briefly review the arising of an inflationary phase in the Universe evolution in order to discuss an inhomogeneous cosmological solution in presence of a real self interacting scalar field minimally coupled to gravity in the region of a slow rolling potential plateau. During the inhomogeneous de Sitter phase the scalar field dominant term is a function of the spatial coordinates only. We apply this generic solution to the Coleman-Weinberg potential and to the Lemaitre-Tolman metric. This framework specialized nearby the FLRW model allows a classical origin for the inhomogeneous perturbations spectrum.

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