Speaker
Thomas Forget
(Université de Montréal)
Description
Using quantum field theory, we calculate the total effect on the photon flux in the microwave background due to some photons being gravitationally scattered toward us and others being gravitationally scattered away from us. The scattering is produced by the density fluctuations which act like point masses in a FLRW background, which can be of either sign. The net effect of having masses of either sign is to give a Debye screening of the graviton.
| Keyword-1 | Sachs-Wolfe effect |
|---|---|
| Keyword-2 | Gravitational scattering |
Primary authors
Manu Paranjape
(Université de Montréal)
Thomas Forget
(Université de Montréal)
