Monday, February 09, 2026
4:00 PM -
5:00 PM
Online and In-Person Event
High Energy Physics Seminar
The renormalization group for large-scale structure
Henrique Rubira,
LMU München, Kavli Institute for Cosmology, Cambridge,
Major improvements in the theoretical aspects of Cosmology have been possible in recent years due to QFT-inspired methods, such as the effective field theory of large-scale structure (EFTofLSS). In this talk, I will discuss novel two-loop results. I will also explore further connections between high-energy physics and cosmology. I will present a systematic approach to renormalizing the galaxy bias parameters using path integrals and a finite cutoff scale Λ. I will derive the differential equations of the Wilson-Polchinski renormalization group that describe the evolution of the finite-scale bias parameters with Λ, analogous to the β-function running in QFT.
The talk is in 469 Lauritsen.
Contact [email protected] for Zoom link.
Event Sponsors:
For more information, please visit https://www.theory.caltech.edu/seminars/high-energy-physics-seminars.