Speaker
Grigorios Panotopoulos
(Department of Physics, University of Chile, Chile)
Description
In the present work we show that warm chaotic inflation characterized by a simple
$\frac{\lambda}{4}\phi^{4}$
self-interaction potential for the inflaton, excluded by current
data in standard cold inflation, and by an inflaton decay rate proportional
to the temperature, is in agreement with the latest Planck data.
The parameters of the model are constrained, and our results show that the
model predicts a negligible tensor-to-scalar ratio in the strong dissipative
regime, while in the weak dissipative regime the tensor-to-scalar ratio can be
large enough to be observed.
