Quantum gravity with purely virtual particles: from quantum field theory to primordial cosmology

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• Damiano Anselmi, Pisa
• Monday 16 November 2020, 13:00-14:00
• CMS, Pav. B, CTC Common Room (B1.19) [Potter Room].

If you have a question about this talk, please contact David Stefanyszyn.

I introduce the concept of purely virtual particle, or fakeon, and show how to use to make sense of quantum gravity as a quantum field theory. Then I discuss novel features of the classical limit and derive predictions in inflationary cosmology that could be tested in the forthcoming years, paying special attention to the effects of fakeons on perturbation spectra.

This talk is part of the Cosmology Lunch series.

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