Faculty

The Early Universe

Gravitational waves and strong gravity

Dark Universe

One of the fundamental cosmological parameters is the Hubble constant, which is related to the age of the universe. A way to determine the Hubble constant is to measure the expansion rate of the universe using supernova explosions. Unfortunately, these measurements don’t quite agree with the value of the Hubble constant inferred from the cosmic microwave background. To reconcile these measurements might require a change of the standard model of cosmology.

In this thesis, you will first study the observations that led to the Hubble tension and then explore possible resolutions due to new physics.

__References__

[1907.10625, 1908.03663](https://www.quantamagazine.org/cosmologists-debate-how-fast-the-universe-is-expanding-20190808/)

Daniel Baumann

Research Areas

Masters Thesis Projects