4 papers
Duality and Axion Wormholes
Edward Witten
The prototype of a Euclidean wormhole solution of Einstein gravity coupled to matter is the axion wormhole in four spacetime dimensions. In this primarily expository article, we sp…
Bras and Kets in Euclidean Path Integrals
Edward Witten
Quantum mechanics requires a hermitian inner product <~,~> -- linear in one variable, antilinear in the other -- while the inner product (~,~) that comes most naturally from Euclid…
Emergent Mixed States for Baby Universes and Black Holes
Jonah Kudler-Flam, Edward Witten
We examine the behavior of sequences of states in the large limit of AdS/CFT duality in cases in which the bulk duals involve baby universes or black holes. Such sequences gene…
Liouville Theory: An Introduction to Rigorous Approaches
Sourav Chatterjee, Edward Witten
In recent years, a surprisingly direct and simple rigorous understanding of quantum Liouville theory has developed. We aim here to make this material more accessible to physicists…