Cosmology meets cohomology

E1 05 (Leibniz-Saal)


The recent study of FRW correlators has revealed fascinating connections between positive geometries and modern on-shell methods as well as exhibiting novel mathematical structures. In particular, FRW correlators take the form of (degenerate) generalized Euler integrals. I will formulate the associated twisted cohomology governing these integrals then introduce the intersection pairing (an inner product on the space of FRW integrals) and the corresponding dual relative twisted cohomology. Then, I will advocate for the advantages of relative twisted cohomology; specifically how it manifests the unitarity structure of these correlators. Using this framework, I will explain how to predict the basis size of these integrals and describe several algorithms to compute their differential equations.


12.02.24 16.02.24

Positive Geometry in Particle Physics and Cosmology

MPI für Mathematik in den Naturwissenschaften Leipzig (Leipzig) E1 05 (Leibniz-Saal)
Universität Leipzig (Leipzig) Hörsaal für Theoretische Physik

Mirke Olschewski

Max Planck Institute for Mathematics in the Sciences Contact via Mail

Johannes Henn

Max Planck Institute for Physics

Bernd Sturmfels

Max-Planck-Institut für Mathematik in den Naturwissenschaften