The aim of this thesis is to study the evolution of the distribution of baryons in the Universe. It is used a Schrödinger equation approach which had already proven successful in the study of Cold Dark Matter. Both a semi-analytical (via quantum perturbation theory and limited to scales bigger than the Jeans wavelength) and a numerical study ( Strang time-splitting approximation) are presented. In addition we extended a previous study on a new candidate for DM, fuzzy DM, considering the possibility of a velocity dispersion modelled as a gas pressure.

Schrödinger equation approach to the distribution of baryons in the Universe

Occhipinti, Guido
2020/2021

Abstract

The aim of this thesis is to study the evolution of the distribution of baryons in the Universe. It is used a Schrödinger equation approach which had already proven successful in the study of Cold Dark Matter. Both a semi-analytical (via quantum perturbation theory and limited to scales bigger than the Jeans wavelength) and a numerical study ( Strang time-splitting approximation) are presented. In addition we extended a previous study on a new candidate for DM, fuzzy DM, considering the possibility of a velocity dispersion modelled as a gas pressure.
2020-11
136
cosmology; Schrödinger equation; large-scale structure; quantum mechanics; dark matter; baryons
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12608/22970