Speaker
Fernando Brandt
(Universidade de São Paulo)
Description
The first order form of the Einstein-Hilbert action is shown to reduce the number of
vertices needed to compute Feynman diagrams to just three three-point ones; in addition there are
two propagating fields. This simplified set of Feynman rules can be used to derive the same results
as the usual second order form of the Einstein-Hilbert action. We also consider the contributions to the effective action of the graviton in a thermal background.
Author
Fernando Brandt
(Universidade de São Paulo)
Co-authors
Prof.
Dennis McKeon
(University of Western Ontario, Canadá)
Prof.
Josif Frenkel
(Universidade de São Paulo)
