2013/03/11 by Patrick Peter, Peter, Patrick
Physics and Astronomy · #Advanced Mathematical Theories and Applications #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Quantum and Classical Electrodynamics #Relativity and Gravitational Theory
paper · pdf · doi:10.48550/arxiv.1303.2509
openalex publication_date 2013/03/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A short pedagogical overview of cosmological perturbation theory, following the lectures given during the brazilian school of cosmology held in August 2012. Topics treated are: I. The background II. SVT decomposition and the gauge issue. III. The example of the tensor modes. IV. Density fluctuations, transfer function and power spectrum. V. Initial condition theory: quantum vacuum fluctuations.