Black holes in evolving backgrounds
Exact solutions for black holes in cosmological media, with studies of horizon structure, perturbations, and superradiance.
Theoretical physics
Elena Kopteva
General relativity, cosmology,
and cosmological black holes.
Visiting Research Scientist
Department of Physics
University of Illinois Urbana-Champaign
I work on exact solutions of the Einstein equations and their implications for cosmology and astrophysics.
Research directions
Inhomogeneous cosmology
Models of cosmic expansion that explore the effects of spatially varying pressure and the relation between local geometry and observation.
Agent populations and human feedback
Collective semantic dynamics in language model agents and the effects of variation in human rater state on preference data.
At Illinois
I teach physics and supervise student research in gravitation. Before coming to Illinois, I worked in gravity theory and theoretical cosmology in Ukraine and the Czech Republic.