Theory Colloquia

The S-matrix reloaded

by João Penedones (EPFL)

Europe/Zurich
zoom only (CERN)

zoom only

CERN

Description

I will briefly recount the recent revival of the non-perturbative S-matrix Bootstrap.

Then I will explain how this (numerical) approach can be used to bound the space of Wilson coefficients in Effective Field Theories (EFT). I will focus on the application to supergravity in 10 spacetime dimensions (https://arxiv.org/abs/2102.02847). Remarkably, strongly coupled string theory seems to saturate the bounds imposed by Lorentz invariance, unitarity and causality.

At the end, we will discuss some of the many open questions in the field.

Videoconference
TH colloquia
Zoom Meeting ID
67346292748
Host
Elena Gianolio
Alternative hosts
Alexander Zhiboedov, Zoom Recording Operations 2, Thomas Nik Bazl Fard, Samuel Abreu, Benoit Loyer, Pascal Pignereau, Chiara Caprini
Passcode
80279029
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