Advanced Lectures on General Relativity
Geoffrey Compère, Adrien Fiorucci
TL;DR
The notes present a structured tour of canonical surface charges in gravity via the covariant phase space formalism, highlighting generalized Noether theorems and Noether–Wald charges. They then explore 3D gravity, BTZ black holes, and AdS_3/CFT through a Chern–Simons lens, before turning to asymptotically flat spacetimes and the BMS_4 structure with memory effects. The Kerr sector closes the course by examining extremality limits, Kerr/CFT ideas, and black hole spectroscopy through Teukolsky’s perturbation theory and NP/Petrov formalisms. Collectively, the notes illuminate how asymptotic symmetries, holographic dualities, and perturbative analyses shape our understanding of gravitational charges, horizons, and black hole dynamics with broad implications for quantum gravity and gravitational wave phenomenology.
Abstract
These lecture notes are intended for starting PhD students in theoretical physics who have a working knowledge of General Relativity. The 4 topics covered are (1) Surface charges as conserved quantities in theories of gravity; (2) Classical and holographic features of three-dimensional Einstein gravity; (3) Asymptotically flat spacetimes in 4 dimensions: BMS group and memory effects; (4) The Kerr black hole: properties at extremality and quasi-normal mode ringing. Each topic starts with historical foundations and points to a few modern research directions.
