S-matrix constraints on de Sitter and on Black holes

by Prof. Gia Dvali

Max-Planck Institute For Physics And Lmu University, Munich

at Particles and Fields Seminar

Mon, 22 Mar 2021, 14:00
Zoom

Abstract

We discuss how the S-matrix formulation of quantum gravity/string theory eliminates de Sitter vacua
and excludes cosmological term from the energy budget of the Universe. It also puts an upper bound
on the duration of inflation and points to new potentially-observable quantum gravitational imprints.
The microscopic mechanism, enforcing the S-matrix constraint, is the anomalous quantum break-time,
which is also exhibited by black holes. We compare de Sitter with black holes and point out similarities
as well as the fundamental differences.

Join Zoom Meeting
https://us02web.zoom.us/j/81341367926?pwd=YXMwOVNsZisrR2xHcWtRSlNLR0RFdz09

Meeting ID: 813 4136 7926
Passcode: 345123

Created on 18-03-2021 by Palti, Eran (palti)
Updaded on 18-03-2021 by Palti, Eran (palti)