4 papers
Observing Spacetime
Vijay Balasubramanian, Tom Yildirim
Complex states of quantum gravity in flat and AdS gravity can have features that are inaccessible to classical asymptotic observers. The missing information appears to such observe…
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…
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…
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…