4 papers
A Semiclassical Diagnostic for Spacetime Emergence
Netta Engelhardt, Elliott Gesteau
Recent developments have shown that some semiclassical spacetimes cannot emerge from a traditional application of the rules of holography, prompting proposals for restoring their e…
A Quantum Singularity Theorem for the Evaporating Black Hole
Netta Engelhardt, Ivri Nagar
We prove a singularity theorem in semiclassical gravity without assuming global hyperbolicity or the null energy/curvature condition; the former is replaced by the weaker causality…
The Making of von Neumann Algebras from Bulk Focusing
Netta Engelhardt, Hong Liu
The single-trace, infinite-N algebra of an arbitrary region may or may not be a von Neumann algebra depending on the GNS sector. In this paper we identify the holographic dual of t…
Algebraic ER=EPR and Complexity Transfer
Netta Engelhardt, Hong Liu
We propose an algebraic definition of ER=EPR in the limit, which associates bulk spacetime connectivity/disconnectivity to the operator algebraic structure of a quantum…