Gaétan Facchinetti

Welcome to the profile of Gaétan Facchinetti, a postdoctoral researcher at the Theoretical Physics Department (Service de physique théorique) of the Free University of Brussels (ULB) since 2021. He also held postdoctoral positions at the same institution and has been actively involved in both research and teaching activities.

Education highlights:

• PhD in Theoretical Physics (2021) from Université de Montpellier
• Master's in Theoretical Physics from École Normale Supérieure de Paris and Université Pierre et Marie Curie
• Master's in Applied Mathematics from Université Paris-Saclay and École Normale Supérieure de Cachan
• Bachelor's in Physics from École Normale Supérieure de Cachan and Université Pierre et Marie Curie

Research interests span dark matter phenomenology, cosmology, particle physics, and astrophysics, with a focus on:

• Dark matter structuring at (sub)galactic scales
• Cosmic microwave background (CMB) anomalies
• 21cm line cosmology
• Primordial black holes and inflationary spectrum
• Subhalo boost factors for gamma-ray signals
• Tidal interactions between dark matter and baryons

Recent publications demonstrate expertise in:

• 21cm signal analysis for dark matter decay signatures
• Subhalo population modeling for indirect detection
• Velocity-dependent annihilation cross-sections
• Baryonic effects on dark matter distribution

Teaching experience includes:

• Quantum field theory tutorials (master level, ULB 2022-2024)
• Dark matter theory lectures (graduate school, 2024)
• Electromagnetism tutorials (bachelor level, ULB 2021)
• Optics lectures (bachelor level, Université de Montpellier 2019)
• General physics tutorials (bachelor level, Université de Montpellier 2018)

Technical skills include proficiency in C/C++, Python, Julia, Fortran90, CUDA, OpenMPI, OpenMP, and various scientific computing tools.