Research Seminars: Quantum Gravity & Black Holes

A curated collection of 138 research seminars on quantum gravity, black holes, and de Sitter space — featuring talks on the Hartle-Hawking state, black hole information paradox, holographic algebras, semiclassical gravity, and spacetime emergence. These are advanced research-level talks from leading experts in the field.

Comments on the Hartle-Hawking State and Observers - Ying Zhao

Quantum Mechanics of the Hartle-Hawking State - Jordan Cotler

The Hartle-Hawking Wavefunction and de Sitter Black Holes - Gustavo Joaquin Turiaci

An Observer's Measure of De Sitter Entropy - Mehrdad Mirbabayi

Comments on the de Sitter Double Cone - Zhenbin Yang

On the Phase of the de Sitter Density of States - Douglas Stanford

Observers, Alpha Parameters, and the Hartle-Hawking State: Part II - Ying Zhao

Observers, Alpha Parameters, and the Hartle-Hawking State - Daniel Harlow

The Yes Boundaries Wavefunctions of the Universe and Late Time Cosmology - Eva Silverstein

About These Seminars

These 138 research talks cover frontier topics in quantum gravity, including the Hartle-Hawking no-boundary proposal, de Sitter holography, the black hole information paradox and its modern resolutions (islands, replica wormholes), spacetime emergence from entanglement, and semiclassical gravity. Speakers include many of the leading researchers in the field.

All content is publicly available on YouTube. Talks are organized thematically to complement the course material.