Browsing Physics / Fizik by Author "Bauer, Florian"

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Higgs-Palatini inflation and unitarity

Bauer, Florian; Demir, Durmuş Ali (Elsevier, 2011-04)

In the Higgs inflation scenario the Higgs field is strongly coupled to the Ricci scalar in order to drive primordial inflation. However, in its original form in pure metric formulation of gravity, the ultraviolet (UV) ...
Inflation with non-minimal coupling: Metric vs. Palatini formulations

Bauer, Florian; Demir, Durmuş Ali (Elsevier, 2008-07-24)

We analyze non-minimally coupled scalar field theories in metric (second-order) and Palatini (first-order) formalisms in a comparative fashion. After contrasting them in a general setup, we specialize to inflation and find ...