Structure Formation in the Universe

This lecture delves into the spectrum of quantum fluctuations, the prediction of inflation, and the determination of cosmological parameters, leading to the formation of structures in the universe. It covers the evolution of density perturbations, the impact of sound speed changes, and the growth of instabilities in dark matter. The analysis extends to the behavior of the Jeans mass, the types of dark matter, and the challenges in studying structure formation through N-body simulations.