| Login |
| Description | Speaker: Javi Serra Title: Weak Gravity Conjecture from Amplitudes’ Positivity Host: John Terning Room: 432 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. |
| Date | Mon, November 4, 2019 |
| Time | 1:30pm-2:30pm PST |
| Duration | 1 hour |
| Access | Public |
| Created by | High-Energy Seminars |
| Updated | Tue, October 15, 2019 3:18pm PDT |
| Send Reminder | Yes - 0 days 4 hour 0 minutes before start |
