Kaloian Lozanov

E-mail: klozanov@illinois.edu

Office: 241

Office Tel: 


1110 W Green St

Loomis Laboratory,

Urbana, IL 61801,USA

​I'm a theoretical cosmologist who tries to understand the origins of our universe. My research is focused on inflation and the subsequent stage of reheating: the period when the universe first got populated with particles during the hot big bang. I'm a member of the High Energy Phenomenology, Cosmology and Lattice QCD group in the Department of Physics at the University of Illinois at Urbana-Champaign, working closely with Peter Adshead.

Previously, I was a postdoc in the Physical Cosmology group at the Max Planck Institute for Astrophysics led by Eiichiro Komatsu.

I completed my PhD in Theoretical Cosmology at the Institute of Astronomy, University of Cambridge in 2017. My advisors were Mustafa Amin and Anthony Challinor. I have included further details about my research on the Biography page and in my CV. Feel free to browse through my website for more information on my research and interests.

You can find my publications here: Inspire-HEP


In my work, 'GFiRe - a Gauge Field integrator for Reheating', we present a new lattice code to study the fascinating non-linear dynamics of the inflaton field in the early stages of the evolution of our universe. We can simulate realistic scenarios involving a non-perturbatively coupled inflaton to gauge fields and capture exciting phenomena such as non-thermal phase transitions and cosmic defects formation during preheating.