Barak Kol (Hebrew University, Jerusalem): The effective field theory approach to the two body problem in Einstein's gravity
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Europe/Budapest
Tanacsterem
Tanacsterem
Description
The effective field theory approach uses field theory ideas
and techniques to perturbatively solve the two-body problem in the
slow velocity post-Newtonian limit. Central notions include the
two-body effective action, field elimination through Feynman diagrams,
a non-relativistic decomposition of Einstein's field, and finally
divergences, their regularization and renormalization. This study is
important for the ongoing observational effort to detect gravitational
waves and it complements numerical simulations.
