Quantum gravity with purely virtual particles: from quantum field theory to primordial cosmology,
3 years ago
7
Online talk by D. Anselmi for the Max-Planck-Institut für Kernphysik (MPIK), Heidelberg, Germany - Nov 2nd, 2020
Abstract: 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
For the pdf file containing the slides of the talk, see http://renormalization.com/20s4/
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