Particle Theory Seminar, Simon Caron-Huot (McGill) “Gravity: The force from the UV”

Event time: 
Tuesday, December 1, 2020 - 3:30pm to 4:30pm
Online () See map
Event description: 

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Abstract: Dispersion relations are statements of causality. They give
sum rules connecting low and high energies. While they originate in
optics and quantum field theory, I will argue that their ‘true
purpose’ is gravity, viewed as a low-energy effective theory. This is
due to the unique energy dependence of this force. I will present
ongoing work mapping out the space of consistent effective theories,
including recent results in scalar models, deriving a sharp version of
dimensional analysis scaling from causality.

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