Speaker
Prof.
Gabriela Barenboim
(University of Valencia and IFIC)
Description
We postulate that the need of transplanckian masses that single field inflation seems to need to accomodate experimental data can be due to the fact that we "force" our scalar field to be minimally coupled to gravity. Although it is true that the field itself is a "dummy" variable and one is always free to make a field redefinition to the Einstein frame (where the field is minimally coupled) such a redefinition may not be innocent. It may be hiding for example non minimal couplings to gravity or modified gravity scenarios.
Primary author
Prof.
Gabriela Barenboim
(University of Valencia and IFIC)
Co-author
Oscar Vives
(IFIC)
