Warm $\frac{\lambda }{4}{\varphi }^4$ inflationary universe model in light of Planck 2015 results

Grigorios Panotopoulos, Nelson Videla

In the present work we show that warm chaotic inflation characterized by a simple $\frac{\lambda }{4}{\varphi }^4$ self-interaction potential for the inflaton, excluded by current data in standard…