Particles and Fields Seminar
S-matrix constraints on de Sitter and on Black holes
Prof. Gia Dvali
Max-Planck Institute For Physics And Lmu University, Munich
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
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