Artículos de revistas
Warm lambda/4 phi(4) inflationary universe model in light of Planck 2015 results
Fecha
2015Registro en:
Eur. Phys. J. C (2015) 75:525
1434-6044
DOI 10.1140/epjc/s10052-015-3764-3
Autor
Panotopoulos, Grigorios
Videla, Nelson
Institución
Resumen
In the present work we show that warm chaotic
inflation characterized by a simple λ4
φ4 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