From the 1 of 4 linked papers with an AI index.
4 papers
Observing Spacetime
Vijay Balasubramanian, Tom Yildirim
The paper studies whether quantum gravitational observables can access information hidden behind horizons or in baby universes, showing that generic probes reveal nothing while spe…
How to Count States in Gravity
Vijay Balasubramanian, Tom Yildirim
Gibbons and Hawking proposed that the Euclidean gravity path integral with periodic boundary conditions in time computes the thermal partition sum of gravity. As a corollary, they…
A Nonperturbative Toolkit for Quantum Gravity
Vijay Balasubramanian, Tom Yildirim
We propose a method for demonstrating equivalences beyond the saddlepoint approximation between quantities in quantum gravity that are defined by the Euclidean path integral, witho…
The Nonperturbative Hilbert Space of Quantum Gravity With One Boundary
Vijay Balasubramanian, Tom Yildirim
We discuss a basis for the nonperturbative Hilbert space of quantum gravity with one asymptotic boundary. We use this basis to show that the Hilbert space for gravity with two disc…