I'm working in the field of theoretical cosmology, studying gravitational wave signals and cosmological magnetic fields, focusing in particular on their potential to probe the characteristics of the early Universe.

I'm Staff member at CERN and professor at the University of Geneva, on leave from CNRS, France.

I'm a member of the LISA Science Team of ESA and I founded the LISA Cosmology Working Group of the LISA Consortium.

Publication list: https://inspirehep.net/authors/1024580

CV (last updated November 2025): https://cernbox.cern.ch/s/11Cdwjh86Ms0xcS