Speaker
Description
The ΛCDM model, based on General Relativity, has successfully explained a wide range of cosmological observations. However, in recent years, several cosmological tensions have emerged and at the same time, the nature of dark matter and dark energy - the latter introduced to explain the accelerated expansion of the Universe - remains unknown. These issues suggest that our current understanding of gravity and cosmology may be incomplete. In this talk, I will briefly present my doctoral research, which explores teleparallel gravity as an alternative formulation of gravity. In General Relativity, gravity is the result of the curvature of spacetime, while in the teleparallel framework, the curvature vanishes and some other geometric quantities (torsion or non-metricity) describe gravity. I will highlight how teleparallel models can reproduce the well-tested predictions of General Relativity while simultaneously offering new ways to explain the accelerated expansion of the Universe and address the cosmological tensions.