401 citations · 3.5k across the 55 of their papers we have counts for
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UV-Protected Inflation
Cristiano Germani, Alex Kehagias
In Natural Inflation, the Inflaton is a pseudo-Nambu-Goldstone boson which acquires a mass by explicit breaking of a global shift symmetry at scale f. In this case, for small field…
Physics of Trans-Planckian Gravity
Gia Dvali, Sarah Folkerts, Cristiano Germani
We study the field theoretical description of a generic theory of gravity flowing to Einstein General Relativity in IR. We prove that, if ghost-free, in the weakly coupled regime s…
Cosmological Perturbations in the New Higgs Inflation
Cristiano Germani, Alex Kehagias
We study the cosmological perturbations created during the New Higgs inflationary phase. In the New Higgs Inflation, the Higgs boson is kinetically coupled to the Einstein tensor a…
New Model of Inflation with Non-minimal Derivative Coupling of Standard Model Higgs Boson to Gravity
Cristiano Germani, Alex Kehagias
In this letter we show that there is a unique non-minimal derivative coupling of the Standard Model Higgs boson to gravity such that: it propagates no more degrees of freedom than…