Comments on the Hartle-Hawking State and Observers
48:22Holographic Algebras at Null Infinity
53:26Exact Semiclassical Gravity and Partial Cauchy Slice Holography
43:04Bouncing off Stringy Singularities
40:49Comments on the de Sitter Double Cone
42:30An Observer's Measure of De Sitter Entropy
45:10Quantum Mechanics of the Hartle-Hawking State
46:44The Hartle-Hawking Wavefunction and de Sitter Black Holes
43:04The Yes Boundaries Wavefunctions of the Universe and Late Time Cosmology
45:02On the Phase of the de Sitter Density of States
44:06Quantum Cosmology in the BKL Regime and Dual Primon Gases
44:24Relational Perspectives in Quantum Gravity: The Role of Quantum Reference Frames
44:55TQFT Gravity and Sum over Topologies
44:10Failures of Spacetime Emergence
45:26On the Hilbert Space of Quantum Gravity from the Gravitational Path Integral
49:11Emergent Mixed States for Baby Universes and Black Holes
40:51“Filtering'' CFTs at large N: Euclidean Wormholes, Closed Universes, and Black Hole Interiors
46:34Near-Extremal Black Hole Evaporation
40:43A Black Hole Airy Tail: Part 2
41:33TQFT Gravity and Sum over Topologies
This lecture presents a topological gravity model defined by summing a 3D TQFT over bulk topologies, formulated for holographic duality. It explores explicit examples and their implications for pure 3D quantum gravity.
Workshop on Quantum Aspects of Black Holes and Spacetime
Topic: TQFT Gravity and Sum over Topologies
Speaker: Anatoly Dymarsky
Relational Perspectives in Quantum Gravity: The Role of Quantum Reference Frames
Next · Lecture 14Failures of Spacetime Emergence