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gr-qc2018
Inflation with mixed helicities and its observational imprint on CMB
Lavinia Heisenberg, Héctor Ramírez, Shinji Tsujikawa
In the framework of effective field theories with prominent helicity-0 and helicity-1 fields coupled to each other via a dimension-3 operator, we study the dynamics of inflation dr…
astro-ph.CO2018
Reconciling tensor and scalar observables in G-inflation
Héctor Ramírez, Samuel Passaglia, Hayato Motohashi +2
The simple potential as an inflationary model is coming under increasing tension with limits on the tensor-to-scalar ratio and measurements of the scalar spectral inde…