Andy’s research interests primarily lie in understanding aspects of quantum gravity. This includes studying black hole thermodynamics, gravitational holography, and how (semi-) classical gravity can be viewed as an emergent phenomenon. Another aim of his is to use insights from black hole physics and AdS/CFT to develop a holographic/microscopic description of cosmological spacetimes that undergo phases of accelerated expansion, e.g., de Sitter space.
Some of the theoretical tools and frameworks Andy uses in his research include:
Gravitational holography, entanglement entropy, and complexity
Braneworld holography
Covariant phase space methods
Lower-dimensional models of (quantum) gravity
1-loop partition functions
Andy’s other areas of interest include: string theoretic origins of modified gravity, Weyl double-copy, and quantum foundations.