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Explore the fundamental physics behind cosmic inflation in this comprehensive lecture from the V Joint ICTP-Trieste/ICTP-SAIFR School on Cosmology. Delve into the theoretical framework that explains the rapid exponential expansion of the universe during its earliest moments, examining how inflation solves key cosmological puzzles such as the horizon problem, flatness problem, and monopole problem. Learn about the scalar field dynamics that drive inflationary expansion, understand the quantum fluctuations that seed structure formation in the universe, and discover how these primordial perturbations eventually grow into the galaxies and cosmic web we observe today. Gain insights into different inflationary models, their predictions for observable quantities like the cosmic microwave background radiation, and the current observational evidence supporting inflationary cosmology. Master the mathematical tools and physical concepts essential for understanding this cornerstone theory of modern cosmology, presented by Gonzalo Palma from Universidad de Chile as part of an intensive two-week international school program designed for advanced students and researchers in theoretical physics and cosmology.
