31 citations · 76 across the 6 of their papers we have counts for
6 papers
Primary black-hole scalar charges and kinetic screening in -essence-Gauss-Bonnet gravity
Guillermo Lara, Georg Trenkler, Leonardo G. Trombetta
Black holes beyond General Relativity may carry non-standard charges that impact their phenomenology. We study how the scalar charge that is induced by the scalar-Gauss-Bonnet coup…
Causality and Stability from Acoustic Geometry
Ignacy Sawicki, Georg Trenkler, Alexander Vikman
In scalar-tensor theories with derivative interactions, backgrounds spontaneously break local Lorentz invariance. We study the motion of perturbations of the scalar, "phonons", on…
Symmetric Teleparallel Gauss-Bonnet Gravity and its Extensions
Juan Manuel Armaleo, Sebastian Bahamonde, Georg Trenkler +1
General Teleparallel theories assume that curvature is vanishing in which case gravity can be solely represented by torsion and/or nonmetricity. Using differential form language, w…
Shimmering gravitons in the gamma-ray sky
Sabir Ramazanov, Rome Samanta, Georg Trenkler +1
What is the highest energy at which gravitons can be observed? We address this question by studying graviton-to-photon conversion - the inverse-Gertsenshtein effect - in the magnet…
Symmetric Teleparallel Horndeski Gravity
Sebastian Bahamonde, Georg Trenkler, Leonardo G. Trombetta +1
Horndeski gravity is the most general scalar-tensor theory with one scalar field leading to second-order Euler-Lagrange field equations for the metric and scalar field, and it is b…
Generalization of the 2-form interactions
Lavinia Heisenberg, Georg Trenkler
We systematically construct derivative self-interactions for massless and massive 2-forms. There exists a no-go theorem in the literature for constructing Galileon-like Lagrangians…