Event time:
Tuesday, December 1, 2020 - 3:30pm to 4:30pm
Location:
Online ()
Event description:
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.
Host: David Poland (david.poland@yale.edu)
Zoom Link: https://yale.zoom.us/j/99865473853
Contact:
(see "Description" above)