Challenges for Inflationary Cosmology

Details Challenges for Inflationary Cosmology Challenges for Inflationary Cosmology

2004-11-24

arxiv.org/abs/astro-ph/0411671v2

Astronomy and Astrophysics

Astrophysics

Plenary talk at PASCOS-04/NathFest, August 2004, to be published in the proceedings (2 minor comments added to this second ver

Scientific paper

Inflationary cosmology has provided a predictive and phenomenologically very successful scenario for early universe cosmology. Attempts to implement inflation using scalar fields, however, lead to models with serious conceptual problems. I will discuss some of the problems, explain why string theory could provide solutions to a subset of these problems, and give a brief overview of ``string gas cosmology'', one of the approaches to merge string theory and early universe cosmology.

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