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Speakers: Will Kinney (Buffalo University), Andrii Magalich (Leiden University) and Fabio Finelli (INAF, Bologna). Location: Leiden

Event details of Theoretical cosmology meeting
Date 9 November 2018
Time 14:00 -17:00


14:00 – 15:00 Will Kinney (Buffalo University)

Swamp Creatures of the Inflationary Landscape

Cosmological inflation provides an elegant framework for explaining initial conditions for a flat, homogeneous universe with Gaussian, nearly scale-invariant perturbations. Embedding inflation within a UV-complete theory has presented challenges, including eternal inflation and the possibility of a multiverse within the landscape of String Theory. I will discuss current ideas and issues in inflationary model building, including eternal inflation and recently proposed “swampland” conjectures for consistency with string-based UV completions.

15:00 – 15:30 Coffee Break

15:30 – 16: 00 Andrii Magalich (Leiden University)

Current status of warm dark matter models

I review the definition and the particle physics origins of WDM model as well as existing methods to detect its possible effects in observations. I will concentrate on Lyman-alpha forest method providing the most stringent constraints at the moment and present the most recent results and prospects for the future.

16:00 – 17:00 Fabio Finelli (INAF, Bologna)

Planck’s results on Inflation

We present the implications for cosmic inflation of the Planck 2018 release in combination with other data sets. After an overview of the main cosmological results,we present the constraints on slow-roll inflationary models, on features in the primordial power spectrum, and on isocurvature perturbations.

17:00: Borrel


The meeting will take place in Casimir room, Oort building 276, Institute Lorenz, Niels Bohrweg 2, 2333 CA Leiden on Friday 9th November.



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