Hunting physics beyond General Relativity with gravitational waves

点击翻译按钮获取中文摘要

I worked on several aspects of black holes physics.I published one paper regarding aspects of nonsingular black holes in theories that violate Lorentz invariance. In this paper, we studied different frameworks and classified the possible geometries based on modified dispersion relations. We demonstrated the robustness of a classification that we introduced in a previous paper showing its applicability to multi-metric frameworks. Our results contribute to understanding geodesically complete black hole solutions in Lorentz-violating gravity and their potential implications for non-singular solutions.In that period, I also uploaded on arXiv (and published afterward) a paper on the instability of the inner horizon of non-singular black holes. In this paper, we clarify some of the doubts present in the literature about the nature of the instability and we show the universality of the phenomenon.