17–20 Jun 2024
National Galleries of Scotland
Europe/London timezone

Can primordial black holes form without fine-tuning?

19 Jun 2024, 11:00
20m
National Galleries of Scotland

National Galleries of Scotland

The Mound, Edinburgh, EH2 2EL Scotland

Speaker

Dr Andrew Gow (Institute of Cosmology & Gravitation, University of Portsmouth)

Description

Primordial black holes (PBHs) may form in the early universe, and could have relevance to cosmic evolution, particularly as a dark matter candidate. Forming PBHs requires increased power on small scales, corresponding to some kind of feature in the inflaton potential. I will present a study of the fine-tuning of PBH formation for four representative inflation models, discussing the different sources of tuning and potential mitigation methods

Primary author

Dr Andrew Gow (Institute of Cosmology & Gravitation, University of Portsmouth)

Presentation materials