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
41:33Holographic Algebras at Null Infinity
This session delves into the structure and implications of holographic algebras as they manifest at null infinity. It explores their role in understanding quantum information in gravitational theories.
Workshop on Quantum Aspects of Black Holes and Spacetime
Topic: Holographic Algebras at Null Infinity
Speaker: Geoff Penington
Comments on the Hartle-Hawking State and Observers
Next · Lecture 3Exact Semiclassical Gravity and Partial Cauchy Slice Holography