Where particle physics meets cosmology
What happened in the first instants after the Big Bang? How did the fundamental constituents of our universe come to be? My research addresses these questions at the intersection of particle physics and cosmology. Using effective field theories and thermal field theory, we study how the early universe set the stage for the production of dark matter, the emergence of the matter–antimatter asymmetry, and the formation of the known particles and nuclei. These phenomena, born in the universe’s hottest and densest moments, hold the key to understanding why the cosmos looks the way it does today.
Research

Figure credits: Dr. Lucia Garbini
Compelling astrophysical and cosmological observations call for an extension of the Standard Model of particle physics. Any novel particles and their interactions were likely at play during the early stages of the universe’s evolution, where a really hot and dense medium provided the energy for particle collisions . In this sense, the early universe can be viewed as a thermal collider: A natural laboratory for probing physics beyond the Standard Model.
Curious to learn more about the Early Universe as a thermal collider?
Teaching and Lectures
Group members

Discover who we are — our curiosity for physics, our ongoing projects, and the hobbies that keep us inspired outside of work.
New doctoral research (PhD) position in our group! Join the Research Training Group NewSM, apply now.
Thesis Opportunities
Contact
If you are interested in our research and in any thesis’ topic, let’s get in touch:
| simone.biondini@physik.uni-freiburg.de | |
| Office | Room 702, High-Rise Building, Herman-Herder-Straße 3 |

