56 citations · 60 across the 4 of their papers we have counts for
7 papers
Warm dark energy
Gianguido Dall'Agata, Sergio Gonzalez-Martin, Alexandros Papageorgiou +1
Motivated by some of the recent swampland conjectures, we study the implementation for the late time acceleration of the Universe of a mechanism developed by Anber and Sorbo in the…
Scattering of fermions in the Yukawa theory coupled to Unimodular Gravity
Sergio Gonzalez-Martin, Carmelo P. Martin
We compute the lowest order gravitational UV divergent radiative corrections to the S matrix element of the scattering process in t…
Physical content of Quadratic Gravity
Enrique Alvarez, Jesus Anero, Sergio Gonzalez-Martin +1
We have recently undergone an analysis of gravitational theories as defined in first order formalism, where the metric and the connection are treated as independent fields. The phy…
A candidate for an UV completion: quadratic gravity in first order formalism
Enrique Alvarez, Jesus Anero, Sergio Gonzalez-Martin +1
We consider the most general action for gravity which is quadratic in curvature. In this case first order and second order formalisms are not equivalent. This framework is a good c…
Ghost-free higher derivative unimodular gravity
Enrique Alvarez, Sergio Gonzalez-Martin
The unimodular version of the ghost-free higher derivative gravity is obtained. It is the unimodular reduction of some particular lagrangians quadratic in curvature.
Asymptotic solutions in asymptotic safety
Sergio Gonzalez-Martin, Tim R. Morris, Zoë H. Slade
We explain how to find the asymptotic form of fixed point solutions in functional truncations, in particular approximations. We find that quantum fluctuations do not decoupl…