TH String Theory Seminar

Cosmology vs Quantum Field Theory: a few hints from AdS/CFT

by Ilias Kyritsis (University of Crete (GR) and APC (FR))

Europe/Zurich
4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110
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Description
I will discuss several issues that arise when comparing what we know from the gauge-gravity correspondence to what we know in cosmology about inflation. I will try to make and debate the following points: 1) The approximate conformal invariance of both sides indicates that there is a a way to classify/parametrize models of inflation using universality classes a la Wilson. This explains in part the universality observed in the predictions of a certain number of inflation models. 2) The notion of naturalness/fine tuning of inflation and the resolution of cosmological singularities can be turned upside down if one takes seriously the leads coming from AdS/CFT. 3) The cosmological evolution can be mapped to RG flow in QFT. This raises both non-trivial questions and suggests some radical reinterpretation of cosmology