401 citations · 3k across the 54 of their papers we have counts for
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On the Trispectrum of Galileon Inflation
Frederico Arroja, Nicola Bartolo, Emanuela Dimastrogiovanni +1
We present a detailed study of the trispectrum of the curvature perturbation generated within a stable, well defined and predictive theory which comprises an inflationary phase. In…
The Trispectrum in the Effective Theory of Inflation with Galilean symmetry
Nicola Bartolo, Emanuela Dimastrogiovanni, Matteo Fasiello
We calculate the trispectrum of curvature perturbations for a model of inflation endowed with Galilean symmetry at the level of the fluctuations around an FRW background. Such a mo…
Enhancing Inflationary Tensor Modes through Spectator Fields
Matteo Biagetti, Matteo Fasiello, Antonio Riotto
We show that a large contribution to tensor modes during inflation can be generated by a spectator scalar field with speed of sound lower than unity.
Trispectrum from Co-dimension 2(n) Galileons
Matteo Fasiello
A generalized theory of multi-field galileons has been recently put forward. This model stems from the ongoing effort to embed generic galileon theories within brane constructions.…