57 citations · 472 across the 20 of their papers we have counts for
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To the sphere and back again: de Sitter infrared correlators at NTLO in 1/N
Diana López Nacir, Francisco D. Mazzitelli, Leonardo G. Trombetta
We analyze the infrared behavior of the two and four-point functions for the massless model in Lorentzian de Sitter spacetime, using the expansion. Our approach is bas…
Long distance behavior of -model correlators in de Sitter space and the resummation of secular terms
Diana López Nacir, Francisco D. Mazzitelli, Leonardo G. Trombetta
We analyze the long distance behavior of the two-point functions for an interacting scalar model in de Sitter spacetime. Following our previous work, this behavior is analyz…
Massless Interacting Scalar Fields in de Sitter space
Diana López Nacir, Francisco D. Mazzitelli, Leonardo G. Trombetta
We present a method to compute the two-point functions for an scalar field model in de Sitter spacetime, avoiding the well known infrared problems for massless fields. The m…
model in Euclidean de Sitter space: beyond the leading infrared approximation
Diana López Nacir, Francisco D. Mazzitelli, Leonardo G. Trombetta
We consider an scalar field model with quartic interaction in -dimensional Euclidean de Sitter space. In order to avoid the problems of the standard perturbative calculat…
On the renormalization procedure for quantum fields with modified dispersion relation in curved spacetimes
Diana López Nacir, Francisco D. Mazzitelli
We review our recent results on the renormalization procedure for a free quantum scalar field with modified dispersion relations in curved spacetimes. For dispersion relations cont…
Running of Newton's constant and non integer powers of the d'Alembertian
D. López Nacir, F. D. Mazzitelli
The running of Newton's constant can be taken into account by considering covariant, non local generalizations of the field equations of general relativity. These generalizations i…