New Developments in Theoretical Cosmology

Session

Afternoon session 2

12 Feb 2025, 16:15

Imperial College London

Conveners

Afternoon session 2: Alan Rios Fukelman

• Scott Melville

6. Exact results for de Sitter QFTs

Alan Rios Fukelman (KCL)

12/02/2025, 16:15

In this talk I will discuss some recent developments in the study of quantum fields on a fixed de Sitter background. I will discuss the two-dimensional Schwinger model of a massless charged fermion coupled to an Abelian gauge field. The theory admits an exact solution that can be analyzed efficiently using Euclidean methods. I will discuss the fully non-perturbative, all loop correlation...