1–5 Sept 2025
CERN
Europe/Zurich timezone

Cosmological gravitational particle production: Starobinsky vs Bogolyubov, uncertainties, and issues

2 Sept 2025, 12:20
5m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map
Talk Cosmology

Speaker

Duarte Da Silva Feiteira

Description

Gravitational particle production provides an ever-present background in non-thermal dark matter studies. I discuss the correspondence between the Starobinsky and Bogolyubov approaches to the problem of inflationary particle production, and derive strong constraints on frameworks with scalar dark relics.

(Based on D. Feiteira, O. Lebedev, arXiv:2503.14652)

Authors

Duarte Da Silva Feiteira Prof. Oleg Lebedev (University of Helsinki)

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