Cornell University

This is a past event. Its details are archived for historical purposes.

The contact information may no longer be valid.

Please visit our current events listings to look for similar events by title, location, or venue.

LEPP Theory Seminar: Javi Serra (TU Munich)

Friday, November 1, 2019 at 1:00pm

Physical Sciences Building, 401
245 East Avenue

Weak Gravity Conjecture from Amplitudes’ Positivity

Abstract: In this talk I will show how to derive positivity bounds for scattering amplitudes in theories with a massless graviton in the spectrum in four spacetime dimensions. These new bounds imply that extremal black holes are self-repulsive, M/|Q|<1, once higher-dimensional operators beyond Einstein-Maxwell are taken into account, thus providing an S-matrix proof of the weak gravity conjecture. I will also present applications of these bounds to other gravitational theories, and discuss some future directions of investigation.

Subscribe
Google Calendar iCal Outlook
Event Type

Seminar

Departments

Physics, LEPP, CLASSE

Website

https://www.classe.cornell.edu/NewsAn...

Contact E-Mail

evm23@cornell.edu

Contact Name

Katerina Malysheva

Contact Phone

607-255-5722

Speaker

Javi Serra

Speaker Affiliation

TU Munich

Recent Activity