Cosmological perturbations

• Main Author: Αρμάος, Βασίλειος
• Other Authors: Αναστόπουλος, Χάρης
• Format: Thesis
• Language: English
• Published: 2017
• Subjects: Cosmology; Perturbations; Inflation; Big bang; Early universe; Fluctuations; Inflaton; Κοσμολογία; Διαταραχές; Πληθωρισμός; Μεγάλη έκρηξη; Πρώιμο σύμπαν; 521.4

This thesis is dedicated to the study of the cosmological perturbations in the inflationary universe. With the homogenous Robertson-Walker metric as our starting point, we introduce the primordial metric fluctuations which are classified as scalar, vector or tensor. Then, we introduce the gauge i...