Explore the second lecture in a series on Black Hole Superradiance delivered by Nils Siemonsen from Princeton University, USA. This 1 hour and 37 minute ICTP-SAIFR seminar, recorded on May 16, 2025, continues the exploration of superradiance phenomena in black hole physics. Delve into advanced concepts of how rotating black holes can amplify certain types of radiation through energy extraction mechanisms. Learn about the theoretical frameworks and mathematical models that describe this fascinating quantum process at the intersection of general relativity and quantum field theory. For additional resources and context, visit the ICTP-SAIFR website dedicated to this seminar series.