ITP |
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Teilchentee WS 2019/20
Seminar at the Institute for Theoretical Physics, Heidelberg University
on Thursdays, 4 pm
organizers: S. Westhoff, L. Amendola
Before each seminar, the speaker gives an informal Pre-Talk, introducing the MSc and PhD students at the ITP to the broader context of the topic of the seminar.
Pre-Talks start at 3:30 pm
Date: 07.11.2019
Speaker: Ignacy Sawicki
Title: Modified gravity in cosmology after GW170817
Abstract
I will review the existing and sometimes growing tensions in cosmological observations as a motivation for a dynamical mechanism for accelerating the expansion of the universe alternative to a cosmological constant. The observation of gravitational waves has constrained the theory space for such ideas, but possible dynamical models remain. I will discuss their phenomenology and how we expect to constrain them using upcoming cosmological data.
