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12–14 Mar 2025
University of Helsinki
Europe/Helsinki timezone

Cosmology in metric affine theories of gravity

12 Mar 2025, 17:30
5m
E204 (University of Helsinki)

E204

University of Helsinki

Gustaf Hällströmin katu 2, 00560 Helsinki
Lightning talk Lightning talks

Speaker

Ilaria Andrei (University of Tartu)

Description

The stress energy tensor we all know is related to the existence of a metric. But the metric is not the only character we can take into account when studying a theory of gravity. We can also consider an independent connection. If we do so we will have the hypermomentum tensor in the game too. This can be related to quantities such as torsion and non metricity. What is the role of these quantities in cosmology? Can we explain some kind of accelerated expansion without relying necessarily on a cosmological constant?

Authors

Damianos Iosifidis Ilaria Andrei (University of Tartu) Laur Järv (University of Tartu) Margus Saal

Presentation materials