Emergence of stringy physics from low energy effective field theory
Emergence of stringy physics from low energy effective field theory
Henriette Elvang, University of Michigan Ann Arbor
Date and time:
Tue, Dec 06, 2022 - 2:30pm
Location:
remote via zoom
Category:
ACFI Seminar
Speaker link:
https://lsa.umich.edu/physics/people/faculty/elvang.html
Abstract:
String monodromy relations are linear relations among open
string tree amplitudes. They are intrinsically stringy in nature and
it is therefore surprising that we can show them to arise from
low-energy considerations in field theory. In the talk, I will
introduce scattering amplitudes and their properties, explain
low-energy effective field theory, show how string monodromy comes
from contour deformations of the string integrals, and finally present
the argument of how locality, unitary, and linear field theory
amplitude relations allow us to "bootstrap" the string monodromy
relations in the low-energy expansion.
Department of Physics