This is a first course in quantum field theory in curved spacetime. The course introduces the basic concepts pertaining to curved spacetimes including standard examples such as cosmological spacetimes or black holes. After introducing classical fields on curved spacetimes and analyzing basic features of the corresponding wave equations and the connection with the Hamiltonian formalism, we develop several viewpoints on their quantization. Finally, we discuss key physical effects such as particle creation in a gravitational field, the Unruh/Hawking effects, or the laws of black hole mechanics. 

This course is mainly intended for students at the master level. 

Semester: WiSe 2022/23