Speaker
Description
We investigate a possible inflationary scenario where the expantion is driven by a slow evolution homogeneous single scalar field, whose potential V(φ) is given by a generalized exponential function taken from the κ-deformed theories. Within the slow-roll approximation, we obtained some the main predictions of the model, as scalar spectral index (ns), tensor to scalar ratio (r), number of e-folds (N) and the local non-Gaussian parameter (fNL). We confront these parameters with the current data of the last mission of Planck satellite, whose results were analysed and published by the Planck Collaboration. We show that this model supports a set of solutions with an exponential approach wider than usual and that its theoretical predictions are compatible with observational data. In particular, it was possible to relieve the tension on r between the value predicted by the usual exponential model from Ratra and Peebles and the value measured by the Planck.
