Conceptual Problems of Inflationary Cosmology and a New Approach to Cosmological Structure Formation
Abstract
In spite of its great phenomenological success, current models of scalar field-driven inflation suffer from important unresolved conceptual issues. New fundamental physics will be required to address these questions. String theory is a candidate for a unified quantum theory of all four forces of nature. As will be shown, string theory may lead to a cosmological background quite different from an inflationary cosmology, and may admit a new stringy mechanism for the origin of a roughly scale-invariant spectrum of cosmological fluctuations.
- Publication:
-
Lecture Notes in Physics, Berlin Springer Verlag
- Pub Date:
- 2007
- DOI:
- 10.1007/978-3-540-74353-8_11
- arXiv:
- arXiv:hep-th/0701111
- Bibcode:
- 2007LNP...738..393B
- Keywords:
-
- High Energy Physics - Theory;
- Astrophysics;
- General Relativity and Quantum Cosmology;
- High Energy Physics - Phenomenology
- E-Print:
- 33 pages, 4 figures Based on an invited talk at "Inflation + 25", Paris, June 2006 To be published in the proceedings (Springer, 2007)