Lectures on Gravitational Wave Signatures of Primordial Black Holes

Understand

We provide a pedagogical approach to gravitational waves in cosmology with focus on gravitational wave signals related to primordial black holes.

• These lectures notes contain more details than one is able to present in the two two-hour lectures they are meant to and, as such, they should be thought as a complementary material.
• The main aim of these lectures is that, by the end, one obtains a certain degree of intuition on gravitational waves in cosmology and understands the basic features of scalar induced gravitational waves.
• We also highlight must-check properties of induced gravitational waves as well as current issues regarding secondary gravitational waves in cosmology.