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Ursino, Pasquale Tiziano (2017) Cosmological Perturbation Theory beyond shell-crossing: Schrödinger equation approach. [Laurea triennale]

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Abstract

In this dissertation, in order to study the growth of the density fluctuations of the Cold Dark Matter, the standard perturbation techniques, such as Eulerian perturbation theory and Zel'dovich approximation, have been reviewed. In the second part of our work, we introduce a novel approach to the study of large–scale structure formation in which the Cold Dark Matter is modelled by a complex scalar field whose dynamics are ruled by coupled Schrodinger and Poisson equations. In the last part, we show that results predicted by "tree-level" perturbation theory for the cold dark matter are perfectly recovered.

Item Type:Laurea triennale
Corsi di Laurea Triennale:Scuola di Scienze > Fisica Ord. 2014
Uncontrolled Keywords:Cosmology, Perturbation theory, Schrödinger, galaxies, gravitational instability, shell-crossing, Dark Matter
Subjects:Area 02 - Scienze fisiche > FIS/05 Astronomia e astrofisica
Codice ID:57504
Relatore:Matarrese, Sabino
Data della tesi:December 2017
Biblioteca:Polo di Scienze > Dip. Fisica e Astronomia "Galileo Galilei" - Biblioteca
Tipo di fruizione per il documento:on-line per i full-text
Tesi sperimentale (Si) o compilativa (No)?:No

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