Hunting for new physics in the primordial Universe

Wang, D.-G. (2020)

Doctoral Thesis

This thesis contributes to studying primordial cosmology theories and their detectability in future observations. The first part of the thesis studies a class of inflation models with curved field spaces, which are typically motivated in high energy physics theories. The second part of the thesis focuses on one particularly important cosmological observable -- primordial non-Gaussianity, whose phenomenology may reveal new physics effects in the very early Universe.

• Cosmology
• Cosmic inflation
• Theoretical high energy physics
• Effective field theory
• Primordial non-Gaussianity
• Multi-field inflation
• Cosmological perturbation theory

• All authors: Wang, D.-G.
• Supervisor: Achúcarro, A.
• Co-supervisor: Cai, Y.-F.
• Committee: Pajer, E.; Roest, D.; Eliel, E.R.; Schalm, K.E.
• Qualification: Doctor (dr.)
• Awarding Institution: Leiden Institute of Physics (LION), Faculty of Science, Leiden University
• Date: 2020-08-27
• Title of host publication: Casimir PhD Series
• ISBN (print): 9789085934455
• Name: 2020-18
• Sponsorship: NWO