This is the second of a two course series which starts with "General Relativity" and continues in the spring with "Theoretical Cosmology", where the focus will be on applying general relativity to cosmology as well as developing the modern theory of structure formation.

The course discusses the quantisation of relativistic fields towards formulating Quantum Electrodynamics. It introduces the notion of scalar, spinor and vector fields and it describes their elementary interactions in terms of correlation functions and scattering amplitudes including radiative corrections.

We will cover several advanced topics in Cosmology where field theoretical techniques are proving useful. We will study Inflation, the theory of its quantum fluctuation, and the Effective Field Theory of Inflation. Then, we will move to the late-time universe, where we will study the formation of structure in the universe with the Effective Field Theory of Large-Scale Structure.

Introduction to the theory of general relativity. The course puts a strong focus on the mathematical foundations of the theory as well as the underlying physical principles and concepts. It covers selected applications, such as the Schwarzschild solution and gravitational waves.