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Weak Gravity Conjecture From Amplitudes’ Positivity



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Recording Details

Speaker(s): 
Scientific Areas: 
PIRSA Number: 
19090020

Abstract

I will show how to derive new positivity bounds for scattering amplitudes in theories with a massless graviton in the spectrum in four spacetime dimensions. The bounds imply that extremal black holes are self-repulsive, M/|Q|