1 citations · 1 across the 5 of their papers we have counts for
12 papers
Geodesic completeness of anisotropic cosmologies and the null energy condition
Sebastian Garcia-Saenz, Junjie Hua, Abbas M. Sherif
We demonstrate that a Bianchi-I spacetime in general relativity must be geodesically past-incomplete under the assumption of the null energy condition and provided there exists a t…
Cosmological tensions in Proca-Nuevo theory
Hsu-Wen Chiang, Claudia de Rham, Sebastian Garcia-Saenz +1
We study the cosmological predictions of (extended) Proca-Nuevo theory. This vector-tensor theory enjoys stable homogeneous and isotropic solutions characterized by an effective da…
No-go theorem for spontaneous vectorization
Hsu-Wen Chiang, Sebastian Garcia-Saenz, Aofei Sang
Generalized vector-tensor theories of gravity have drawn attention for admitting hairy black hole solutions, thereby circumventing the standard no-hair theorems. It remains an open…
Cosmology in warped massive gravity
Sebastian Garcia-Saenz, Yuxiang Wei, Xue Zhou
We study the cosmological dynamics and predictions in the theory of warped massive gravity. This set-up postulates a five-dimensional ghost-free massive graviton with a brane-local…
On the logarithmic Love number of black holes beyond general relativity
Sebastian Garcia-Saenz, Hongbo Lin
Tidal Love numbers and other response coefficients of black holes sometimes exhibit a logarithmic dependence on scale, or 'running'. We clarify that this coefficient is directly ca…
Loops in inflation with strongly non-geodesic motion
Sebastian Garcia-Saenz, Yizhou Lu, Sébastien Renaux-Petel
We study loop corrections in the effective field theory of inflation with imaginary speed of sound, which has been shown to provide an effective description of multi-field inflatio…