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SUMMARY:Towards a holographic description of cosmology on the lattice
DTSTART;VALUE=DATE-TIME:20210421T120000Z
DTEND;VALUE=DATE-TIME:20210421T140000Z
DTSTAMP;VALUE=DATE-TIME:20210506T181135Z
UID:indico-event-1009843@indico.cern.ch
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 observabl
es 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 p
roperties of the CMB from our model\, which requires understanding the IR
properties of 3d super-renormalisable QFT and the computation of 2pt funct
ions of the energy-momentum tensor on the lattice.\n\nTH colloquia: https:
//cern.zoom.us/j/67346292748?pwd=ZnRkQWh0ZXVFQTc5K256QW5NcEcrdz09\n\nhttps
://indico.cern.ch/event/1009843/
LOCATION:CERN zoom only
URL:https://indico.cern.ch/event/1009843/
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