TPPC weekly seminar (online): Shao-Jiang Wang (王少江) - "The Perturbative Hubble Tension"

Wednesday 29 Nov 2023, 12:30 → 14:00 Europe/London

Strand Building, S7.06

Speaker: Shao-Jiang Wang (ITP-CAS-Beijing)

Title: The Perturbative Hubble Tension

Abstract: The standard model of modern cosmology is now in crisis to reach a consensus on the Hubble constant with upto $5\sigma$ discrepancy between measurements from the early and late Universe along with the other tension at $2\sigma$ level on the growth of matter perturbations. We further identify another $3\sigma$ tension from the variations in the Hubble constant with respect to the large-scale perturbations at positions of supernova-host galaxies. New physics beyond current understandings might be indispensable to restore the concordance among resolving these tensions.