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arXiv · 1911.06058

Fundamental Physics, the Swampland of Effective Field Theory and Early Universe Cosmology

Robert Brandenberger
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Abstract

Cosmological inflation is not the only early universe scenario consistent with current observational data. I will discuss the criteria for a successful early universe cosmology, compare a couple of the proposed scenarios (inflation, bouncing cosmologies, and the {\it emergent} scenario), focusing on how future observational data will be able to distinguish between them. I will argue that we need to go beyond effective field theory in order to understand the early universe, and that principles of superstring theory will yield a nonsingular cosmology.

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Robert Brandenberger. 2019-11-14. Fundamental Physics, the Swampland of Effective Field Theory and Early Universe Cosmology. https://arxiv.org/abs/1911.06058

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