Speaker
Adriana Guerrero Menkara
(Chung Ang University)
Description
Higgs inflation has drawn attention due to the minimal possibility of the Standard Model Higgs playing the role of the inflation field. However, the large non minimal coupling with gravity leads to unitarity violation. In this talk, we consider a class of models dubbed sigma-models, UV completions to Higgs inflation arising from general higher curvature terms beyond Einstein gravity. We discuss the sigma-Higgs interaction implications for inflation, vacuum stability and the reheating process. Finally, we discuss the embedding of the inflationary potential into a supergravity framework.
