Guillermo Franco Abellán

Cosmologist | Postdoctoral researcher at IFIC, University of Valencia

I'm Guillermo, and I work as a theoretical physicist specialized in cosmology. I am a postdoc at the Institute of Corpuscular Physics (IFIC), in the University of Valencia. Before this, I was a postdoc at GRAPPA, the Center of excellence for Gravitation and Astroparticle Physics at the University of Amsterdam. Prior to that, I completed my PhD in Physics at the Laboratoire Univers et Particules de Montpellier (LUPM), under the supervision of Vivian Poulin and Julien Lavalle. I am an active member of the Euclid Consortium.

As a researcher, I work on bridging the gap between theory and observations, with special interest in using cosmological observables to learn about the dark components of the universe. Specifically, I have spent a large part of my time thinking about cosmic tensions and their implications for new physics. In recent years, I've also become interested in the use of machine learning techniques to optimize statistical inference in cosmology. In particular, I'm focusing on modern approaches in simulation-based inference, a framework that allows us to perform inference in problems where traditional methods are computationally prohibitive or simply intractable. These methods will be essential to efficiently explore the vast array of dark sector theories from next-generation surveys.

The following word cloud gives a snapshot of my main research themes.