Theory Colloquia

Towards a holographic description of cosmology on the lattice

by Andreas Juettner

Europe/Zurich
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CERN

Description

Following a recent proposal based on holography the physics of the very early universe can be described in terms of a three-dimensional quantum field theory without gravity. In this model cosmological observables are expressed in terms of correlation functions of the energy-momentum tensor computed in the QFT. Testing the model against observational data, e.g. from Planck, requires control over the non-perturbative dynamics in the QFT, which we address with numerical simulations on the lattice. In this talk I will discuss our progress towards making predictions for the properties of the CMB from our model, which requires understanding the IR properties of 3d super-renormalisable QFT and the computation of 2pt functions of the energy-momentum tensor on the lattice.

Videoconference
TH colloquia
Zoom Meeting ID
67346292748
Host
Elena Gianolio
Alternative hosts
Zoom Recording Operations 2, Irene Valenzuela Agui, Benoit Loyer, Clement Montcharmont, Pier Francesco Monni, AVC support account, Urs Wiedemann, Thomas Nik Bazl Fard, Pascal Pignereau
Passcode
80279029
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